Sour Cream Mashed Potatoes

4.3
(6)
5 Reviews
5 Photos

These sour cream mashed potatoes are smooth, fluffy, and deliciously creamy. Infusing garlic butter on top of the mash is an excellent way to add depth of flavor and another layer of richness to mashed potatoes for a comforting side dish.

Submitted by Amanda Stanfield
Updated on October 4, 2024
Tested by
Allrecipes Test Kitchen
Tested by Allrecipes Test Kitchen
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high angle looking at a large bowl of sour cream mashed potatoes with melty butter and chopped green onions on top
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Prep Time:
20 mins
Cook Time:
15 mins
Total Time:
35 mins
Servings:
6
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Ingredients

Original recipe (1X) yields 6 servings

  • 3 pounds Yukon Gold potatoes, peeled and cut into 2-inch chunks

  • 1 ½ tablespoons kosher salt

  • ½ cup salted butter, cubed

  • 4 large cloves garlic, crushed

  • 1 cup whole milk, warmed

  • 1 cup sour cream

  • 6 tablespoons unsalted butter, cubed

  • 2 teaspoons kosher salt

  • ½ teaspoon freshly ground black pepper

  • 2 tablespoons thinly sliced scallions

Directions

  1. Place potatoes and 1 ½ tablespoons of the salt in a large stock pot. Add enough cold water to cover potatoes by 2 inches. Bring to a boil over high heat. Reduce heat to medium-high and boil until potatoes can be easily pierced with a fork, about 15 minutes.

    Overhead shot of potatoes cooking in water in a pot

    Dotdash Meredith Food Studios

  2. Meanwhile, place salted butter and garlic in a small saucepan over low heat. Cook, stirring occasionally until garlic is fragrant and white milk solids have separated from butter, 2 to 3 minutes. Remove from heat and cover to keep warm.

    Overhead shot of garlic and butter in a pot for mashed potatoes

    Dotdash Meredith Food Studios

  3. Remove potatoes from heat and drain in a colander. Return potatoes to the pot; add milk, sour cream, unsalted butter, 2 teaspoons salt, and pepper.

    Overhead shot of potatoes, butter, and sour cream in a pot for mashed potatoes

    Dotdash Meredith Food Studios

  4. Mash using a potato masher until smooth; transfer mashed potatoes into a serving bowl.

    Overhead shot of potatoes being mashed in a pot with a masher

    Dotdash Meredith Food Studios

  5. Pour garlic butter through a fine mesh strainer into a small bowl. Discard milk solids and garlic.

    Overhead shot of garlic being strained out of butter for mashed potatoes

    Dotdash Meredith Food Studios

  6. Pour butter over mashed potatoes and sprinkle with scallions.

    High angle shot of mashed potatoes in a serving bowl drizzled in butter and garnished with scallions

    Dotdash Meredith Food Studios

Cook’s Note

Avoid over-mashing to prevent the potatoes getting glue-like.

I use any leftover mashed potato as the base for a loaded potato bowl.

Nutrition Facts (per serving)

529 Calories
37g Fat
46g Carbs
8g Protein
Nutrition Facts
Servings Per Recipe 6
Calories 529
% Daily Value *
Total Fat 37g 47%
Saturated Fat 23g 114%
Cholesterol 92mg 31%
Sodium 2242mg 97%
Total Carbohydrate 46g 17%
Dietary Fiber 4g 14%
Protein 8g 16%
Potassium 143mg 3%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.