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Sourdough Granola Recipe (Discard or Active Starter) with Fermented Option

A flip top jar is overflowing with sourdough granola, the jar has a black label on it that reads "sourdough granola". There are chunks of sourdough granola surrounding the jar along with a wooden scoop which contains some granola as well.

Come learn how to make homemade sourdough granola with discard or active starter. It’s easy to do, and totally delicious! Our healthy loaded sourdough granola recipe is lightly sweetened with natural maple syrup, nut and seed-forward, and full of fiber and omega fatty acids. We love to make sourdough discard granola with vanilla, cinnamon, and coconut, but I’ve included a few other granola flavor and seasoning ideas to try too! I’ve also included instructions on how to ferment sourdough granola for an added boost of nutrients.

Granola with plain yogurt and fresh fruit is a breakfast staple around here. However, I usually go pretty light on the granola, while adding plenty of extra nuts, seeds, flax, and hemp hearts to my bowl instead. Being Type 1 diabetic, I have to moderate my carb intake… and most granola is fairly high-carb and sweet. So, I figured why not make my own – just the way I like it. Now it’s quickly become one of my favorite sourdough discard recipes!

What to expect from this sourdough granola recipe


  • It’s chunky. The sticky sourdough starter and ground flax meal both act as natural binders, helping to hold everything together and create the perfectly crisp, toasted, chunky sourdough granola. You can easily break it up into small pieces like cereal, or leave it in large snackable clusters – whatever you prefer!

  • It’s healthier and less sweet than commercial granola. With zero refined sugar, no puffed rice, and a high nut and seed-to-oat ratio, our granola recipe has ample protein and fewer carbs than many others. The addition of hemp hearts (hemp seeds) and ground flax seed meal also adds ample protein, fiber, omega 3 and 6 essential fatty acids, vitamin E, and minerals. Then all those good nutrients are even more bioavailable if you ferment the granola first!

  • It’s flexible. You can easily customize this sourdough granola recipe using discard or active starter, your favorite nuts and seeds, various spices and seasonings, nut butter, and/or dried fruit. Bake it right away, or let it sit to ferment. Folks baking with gluten free sourdough starter can easily make this as a gluten-free sourdough granola too! Get creative and enjoy.


An old silver serving spoon is in focus with a cluster of sourdough discard granola sitting inside the spoon portion. A few of the clusters are scattered around the spoon as well with a baking sheet full of the remaining granola in the background.

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The key to making homemade granola crunchy


When you’re used to extra-crispy commercial granola, some homemade granola may not turn out as crunchy as you’d hope. However, the key to making crunchy sourdough granola is to bake it low and slow. Allowing it to bake for a longer time allows more moisture to evaporate, while keeping the temperature low prevents it from becoming too toasted or burning in the process. Plus all of the nuts, seeds, flax meal, and coconut oil we use in this sourdough discard granola recipe helps add some nice crunch too! 

Storing homemade granola in a good air-tight container will also prevent it from losing its crunch. Finally, keep in mind that homemade granola won’t seem super crunchy straight out of the oven; it crisps up significantly as it cools and dries. 


A flay lay image with a variety of white ceramic bowls in various sizes each full of oats, maple syrup, pumpkin seeds, a mixture of almonds, walnuts, and pecans, coconut flakes, a few measuring spoons of sourdough starter, hemp seeds, and smaller measurements of salt, cinnamon, and flax seeds.
We regularly stock our pantry with all these items, but feel free to use what you have or fewer items (e.g. just one kind of nuts or seeds)


Variation: How to make fermented sourdough granola


For an added boost of nutrition, you can also ferment the sourdough granola mixture! Allowing the oats, nuts, and seeds to lacto-ferment first reduces phytic acid (an anti-nutrient), making all the good nutrients more bioavailable and easier to digest.

To ferment sourdough granola, simply combine all the called-for ingredients, loosely cover the bowl, and then let the raw sourdough granola ferment at room temperature for 2 to 6 hours before baking. Move the mixture to the refrigerator for a longer fermentation time (e.g. overnight). Keep in mind it will get more sour-tasting and potentially less crunchy the longer it sits.


Homemade Sourdough Granola Ingredients 


This recipe makes about 6 cups of granola. We often double the recipe and split between two baking sheets!

“Wet” Ingredients

  • ½ cup sourdough starter, discard or active (recently fed). If using sourdough starter discard in this recipe, it’s best if it was fed within the last week or two. Using extra old discard will make your sourdough granola very sour-tasting!
  • 6 Tbsp real maple syrup
  • 3 Tbsp melted coconut oil OR melted butter. I love the flavor and extra light crispness the melted coconut oil offers!
  • 3 Tbsp ground flaxseed. Ground flax meal is easier to digest and acts as a better binder than whole flax seeds. In a pinch, you can grind 1-2 Tbsp of whole flax seeds into powder OR add a couple tablespoons of your favorite nut butter instead. (We also sprinkle ground flax over salads, yogurt, and add it to smoothies and other baked goods.)
  • 1 Tbsp vanilla extract
  • 1 tsp cinnamon (or change it up and use pumpkin spice seasoning instead)
  • ½ tsp sea salt
  • 1/8 cup water – ONLY if you’re going to ferment the granola for a few hours or overnight


Dry ingredients

  • 2 cups of old fashioned rolled oats 
  • 1 cup of raw unsalted nuts of choice. We used about 1/3 cup each of pecan halves, walnuts pieces, and almonds in this particular batch.
  • ½ cup seeds of choice. I like to use ¼ cup pumpkin seeds (pepitas) and ¼ cup raw sunflower seeds.
  • ¼ cup hemp hearts
  • Optional: ½ cup unsweetened coconut flakes (or ⅓ cup shredded coconut)


Optional (later): Up to a cup of dried fruit – such as raisins, cranberries, cherries, blueberries, chopped dry apricots, or other dried fruit of choice. NOTE: The dried fruit should be mixed in once the granola is done cooking and cooled. Learn how to dry apricots or make dried apples here.


An above image of a white ceramic bowl with copper rim is partially full of maple syrup, sourdough starter, cinnamon, and flax meal. A bowl of nuts and a small bowl of pumpkin seeds are just visible above the large bowl.
An above image of a large white ceramic bowl with copper lined rim full of freshly mixed raw sourdough discard granola. A large wooden spoon is inserted into the mixture.


How to Make Sourdough Granola


  1. Preheat the oven to 315 F. 
  1. In a medium to large mixing bowl, combine all of the “wet” ingredients first including the sourdough starter, maple syrup, melted oil or butter, vanilla extract, salt, cinnamon (or other seasonings), and ground flax meal (or nut butter). Mix well to combine.

  2. Next add the rolled oats, nuts, seeds, coconut, and hemp hearts to the bowl of wet ingredients. Toss and stir until all of the dry ingredients are coated and combined.

  3. Optional: Loosely cover the bowl, and let the sourdough granola ferment for 2 to 6 hours at room temperature (or longer in the refrigerator) before baking. If you refrigerate it overnight, plan to take it back out of the fridge to soften and warm up at room temperature for a couple hours before baking.

  4. Spread the raw granola mixture out on a large baking sheet that is either greased or lined with parchment paper. Rather than loosely spreading it, pack and press the granola together and down into a solid flat sheet – so that all of the granola bits are touching and about ½ inch thick. You’ll break it up into smaller pieces later. (Ferment Tip: It can be fairly stiff and sticky after fermenting in the fridge, so I use wet hands to help spread and press it out flat onto the baking sheet.)

  5. Bake low and slow until it’s lightly toasted, about 20 minutes. Once the outer edges start to lightly brown, remove the baking sheet from the oven and let it sit to cool for about 5 minutes.

  6. Using a spatula or your hands (if it’s cool enough to handle), gently break up the sourdough granola into large clusters or chunks, and then stir, flip and rotate them on the tray. I try to move the pieces that were on the outer edge of the pan inward (and vice versa) to promote even toasting.

An image from above of a baking covered with a  layer of oats, nuts, and seeds that have been formed into  a single, solid layer. A wooden spoon is resting on the edge with a few oats and seeds stuck to the end of the spoon.
Before baking
An above image of a baking sheet full of the oat, nut, and seed mixture after it has been pulled from the oven, the mixture has been broken up into larger clusters.
After gently breaking it up, flipping and rotating the clusters


Instructions continued…


  1. Return the granola to the oven to bake for an additional 10 to 15 minutes. (If you added additional wet ingredients such as nut or fruit butters, you may need to bake it a tad longer – just keep an eye on it and stir occasionally!)  

  2. When the time is up, remove the granola from the oven and set the pan on a cooling rack. Let it sit undisturbed to cool and crisp up for at least 30 to 45 minutes. Remember, it will not seem very crispy when you first take it out of the oven, but will become more crunchy as it cools. Trust the process!

  3. Allow the finished granola to fully cool on the pan before putting it away for storage. Feel free to leave your granola in large clusters, or break it up into smaller pieces as you wish.

  4.  For maximum crunch, store homemade sourdough granola in an air-tight container such as a glass container with a sealed lid or zip lock bag. 


A hand is held open, holding a few large clusters of oats mixed with various nuts and seeds. Below and out of focus is a baking sheet with the rest of the clusters of oats, nuts, and seed.
An image of a liter sized glass jar with a flip top lid overflowing with sourdough discard granola. Oats, nuts, and seeds are visible amongst the clusters that have been toasted to a light brown color. Below and out of focus is more granola clusters scattered around the base of a the jar along with a wooden scoop that is full of granola.


Sourdough Granola Flavor Ideas and Seasoning Combos


  • Incorporate a few tablespoons of apple butter, pumpkin butter, pear butter, or other sweet fruit butter addition. Note you may need to bake the granola a tad longer to offset the added moisture.
  • A few tablespoons of pumpkin puree plus pumpkin spice seasoning and pepitas
  • Dried apples, peanut butter, almonds and cinnamon
  • Orange zest, pistachios, and a sprinkle of cardamom
  • Dried cranberries or cherries, apple butter, pecans and pumpkin seeds
  • Dried banana chips, peanut butter, cashews, coconut flakes and cinnamon 
  • Make chocolate granola with the addition of unsweetened cocoa powder (2 Tbsp, added before baking) and mini chocolate chips (added after baking)
  • With any of these ideas, I still recommend using vanilla extract and maple syrup!


A ceramic bowl with yogurt, oats, nuts, and seeds along with a few bright red, ripe strawberries that have been cut in half. A gold spoon is set to the side of the bowl with a few oat, seed, and coconut flakes garnishing the area around the bowl.


Ways to Enjoy Homemade Granola


This may seem like a no-brainer, but there are more ways to eat granola than most folks think of! 


  1. Of course, sourdough granola is amazing on top of yogurt or with milk for breakfast. I always add extra nuts and seeds too. 
  2. We love to sprinkle granola on top of ice cream with a dollop of jam or fresh fruit for dessert, like a crumble topping. Yum! 
  3. Make easy no-bake homemade granola bars! Simply mix sourdough discard granola with a little nut butter and honey (enough to make it all stick together) plus optional dried fruit or chocolate chips. Press the mixture into the bottom of a 9×9″ baking pan, refrigerate overnight, and then cut into bars the next morning. 
  4. You can also work granola into baked good recipes including into muffins, cookies, or sweet breads. 
  5. Sprinkle sourdough granola on top of apple slices with peanut butter, like healthy “apple nachos”
  6. Granola can bring a much-welcomed crunch on top of smoothie bowls or acai bowls.
  7. Add sourdough discard granola to homemade trail mix.
  8. Last but not least, enjoy snacking on granola plain


An image from above of a liter sized glass jar with a flip top lid overflowing with sourdough discard granola. Oats, nuts, and seeds are visible amongst the clusters that have been toasted to a light brown color. Below and out of focus is more granola clusters scattered around the base of a the jar along with a wooden scoop that is full of granola.


And that’s how to make homemade sourdough granola!


Well folks, I really hope you enjoy this tasty and healthy sourdough discard recipe. I love being able to use my starter for something in the weeks we often go between baking bread – especially in a way that we’ll use every day! Please let me know if you have any questions or other flavor ideas in the comments below, and be sure to leave a review once you give it a try. Thank you so much for tuning in today!


Don’t miss these other sourdough discard recipes:


A flip top jar is overflowing with sourdough granola, the jar has a black label on it that reads "sourdough granola". There are chunks of sourdough granola surrounding the jar along with a wooden scoop which contains some granola as well.
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5 from 22 votes

Sourdough Granola Recipe (Discard or Active Starter) with Crunchy Clusters

Looking for sourdough discard recipes? Come try our healthy loaded sourdough granola recipe – with chunky clusters of oats, nuts, seeds, coconut, flax, maple syrup, hemp seeds, vanilla, cinnamon and more. You can make sourdough granola with active or discard starter, or make it fermented!
Prep Time10 minutes
Cook Time40 minutes
Cooling Time30 minutes
Course: Breakfast, Dessert, Snack, Sourdough
Keyword: homemade sourdough granola, sourdough discard recipes, sourdough granola
Servings: 6 cups

Equipment

  • Mixing bowl
  • Baking sheet
  • air tight storage container

Ingredients

"Wet" Ingredients

  • 1/2 cup sourdough starter, discard or active (recently fed). If using discard, it’s best if it was fed within the last week or two.
  • 6 Tbsp maple syrup
  • 3 Tbsp melted coconut oil or melted butter
  • 3 Tbsp ground flaxseed. In a pinch, you can grind 1-2 Tbsp of whole flax seeds into powder OR add a couple tablespoons of your favorite nut butter instead.
  • 1 Tbs[ vanilla extract
  • 1 tsp cinnamon (or change it up and use pumpkin spice seasoning instead)
  • 1/2 tsp sea salt
  • 1/8 cup water- ONLY if you're going to ferment the granola it for a few hours or overnight

Dry Ingredients

  • 2 cups old fashioned roll oats
  • 1 cup nuts of choice (raw and unsalted). We love to use a mix of pecan halves, walnut pieces and almonds
  • 1/2 cup seeds of choice (raw, unsalted) such as pumpkin seeds and/or sunflower seeds
  • 1/4 cup hemp hearts
  • 1/2 cup unsweetened dry coconut flakes (or 1/3 cup shredded coconut) – optional

Instructions

  • Preheat the oven to 315F. 
  • In a medium to large mixing bowl, combine all of the “wet” ingredients first including the sourdough starter, maple syrup, melted oil or butter, vanilla extract, salt, cinnamon (or other seasonings), and ground flax meal (or nut butter). Mix well to combine.
  • Next add the rolled oats, nuts, seeds, coconut, and hemp hearts to the bowl of wet ingredients. Toss and stir until all of the dry ingredients are coated and combined.
  • Optional: Loosely cover the bowl, and let the sourdough granola ferment for 2 to 6 hours at room temperature (or longer in the refrigerator*) before baking.
  • Spread the raw granola mixture out on a baking sheet that is either greased or lined with parchment paper. Rather than loosely spreading it, pack the granola together and down into a solid flat sheet – so that all of the granola bits are touching and about ½ inch thick. You’ll break it up into smaller pieces later.
  • Bake low and slow until it’s lightly toasted, about 20 minutes. Once the outer edges start to lightly brown, remove the baking sheet from the oven and let it sit to cool for about 5 minutes.
  • Using a spatula or your hands (if it’s cool enough to handle), gently break up the sourdough granola into large clusters or chunks, and then stir, flip and rotate them on the tray. I try to move the pieces that were on the outer edge of the pan inward (and vice versa) to promote even toasting.
  • Return the granola to the oven to bake for an additional 10-15 minutes. (If you added additional wet ingredients such as nut or fruit butters, you may need to bake it a tad longer – just keep an eye on it and stir occasionally!)  
  • Remove the granola from the oven and set the pan on a cooling rack. Let it sit undisturbed to cool and crisp up for at least 30 to 45 minutes. Remember, it will not seem very crispy when you first take it out of the oven, but will become more crunchy as it cools. Trust the process!
  • Allow the finished granola to fully cool on the pan before putting it away for storage. Leave it in large clusters or break it up into smaller pieces as you wish.
  •  For maximum crunch, store in an air-tight container such as a glass container with a sealed lid or zip lock bag. 

Notes

Note: if you choose to ferment the sourdough granola overnight in the refrigerator, plan to take it back out of the fridge to warm up and soften at room temperature for a couple hours before baking. It can be fairly stiff and sticky after fermenting in the fridge, so I use wet hands to help spread and press it out flat onto the baking sheet. 



DeannaCat signature, keep on growing.

Deanna Talerico (aka DeannaCat) is a garden educator and writer with over 15 years experience in organic gardening. She is a retired Senior Environmental Health Specialist, and holds a M.A. in Environmental Studies and B.S. in Sustainability and Natural Resources.

32 Comments

  • Adisyn

    I can’t wait to try this recipe!! How long does it last for? Is it better stored in an airtight container in the pantry, fridge or freezer? Thank you!

    • Aaron (Mr. DeannaCat)

      Hi Adisyn, we like to store our granola in an airtight container in the pantry, it will stay good for multiple weeks if not longer but you will likely eat it all before it gets to that point, I know that’s how it goes for us at least, we hope you enjoy the granola!

  • Sheri

    If you are fermenting when are you getting the 1/8 cup of water? Or is that just for wetting your hands because it’ll be sticky?

    • Aaron (Mr. DeannaCat)

      Hi Sheri, you just add 1/8th of a cup of water to the wet ingredients for the longer ferment option as it gives the ingredients a bit more moisture to help coat everything (the oats will soak up a bit of moisture) and it allows for a better fermentation. Hope that helps and enjoy!

  • Jess P.

    5 stars
    Tried this recipe for the first time and it was a hit! Been dying to try it, and glad we finally did. It was so easy for the kiddo to help too.

    We played it safe with flavors, and even my hubby and kiddo loved it! Looking forward to trying other varieties and flavors!

  • Jeanette

    5 stars
    I have tried many granola recipes, and this one is the winner! I did a mixture of oats and sunflower seeds and it turned out great. I love the simplicity, and the fact that you give instructions to regularly check on it. I can’t wait to try the different suggestions.

    • Aaron (Mr. DeannaCat)

      So glad you enjoy the granola recipe and hope you have fun playing around with the different add ins or substitutions.

  • Brooke Barker

    5 stars
    I can’t believe how good (and easy) this was. I’m never buying store-bought granola again. Thank you!! I’m curious – can you use the same recipe without the sourdough starter? Anything you need to add if so?

    • Aaron (Mr. DeannaCat)

      Hi Brooke, that is so great to hear you enjoy the granola so much! While we haven’t made the recipe without sourdough starter, you can do so, you may just want to add a nut butter of your choice to help bind the ingredients somewhat. I would just add small amounts at first to see how much you need to get the ingredients to bind together like the sourdough starter does. Hope that helps and enjoy!

5 from 22 votes (7 ratings without comment)

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