Recipes Side Dish Potato Potatoes Au Gratin Recipes Sweet Potato Gratin 4.4 (9) 7 Reviews 4 Photos This sweet potato gratin is sweet and savory and packed with flavor and nutrition. Submitted by souplover Sue Updated on October 2, 2024 Tested by Allrecipes Test Kitchen Tested by Allrecipes Test Kitchen The Allrecipes Test Kitchen staff are a team of culinary pros who make and vet recipes using only equipment you'd find in a home kitchen. Staff credentials vary but include training at the Culinary Institute of America; kitchen stints in fine dining restaurants; and countless hours in the test kitchen itself. Meet the Allrecipes Test Kitchen Save Rate Print Share Close Add Photo 4 4 Prep Time: 25 mins Cook Time: 35 mins Total Time: 1 hr Servings: 10 Yield: 1 casserole Jump to Nutrition Facts Cook Mode (Keep screen awake) Ingredients cooking spray 2 cups heavy cream 1/4 cup unsalted butter 2 cloves garlic, minced 1 tablespoon chopped fresh parsley, or more to taste 1 tablespoon fresh thyme leaves, or more to taste 1 tablespoon minced fresh sage, or more to taste 1 tablespoon minced fresh rosemary, or more to taste 1 ½ teaspoons sea salt ¾ teaspoon ground black pepper 3 pounds sweet potatoes, peeled and thinly sliced 1 ½ cups shredded Gruyère cheese Directions Preheat the oven to 400 degrees F (200 degrees C). Coat a baking dish with cooking spray. Combine cream, butter, and garlic in a saucepan; bring to a simmer. Remove from heat; stir in parsley, thyme, sage, rosemary, salt, and black pepper. Arrange 1/2 sweet potato slices in the prepared baking dish; cover with 1/2 Gruyère cheese. Pour cream mixture on top. Arrange remaining 1/2 sweet potato slices over cream; sprinkle remaining 1/2 cheese on top. Bake in the preheated oven until golden brown and bubbly, about 30 minutes. From the Editor Please note that the Allrecipes magazine version uses 3/4 cup each cream and milk instead of 2 cups cream and is baked for an extra 15 minutes. I Made It Print Nutrition Facts (per serving) 391 Calories 28g Fat 29g Carbs 8g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 10 Calories 391 % Daily Value * Total Fat 28g 35% Saturated Fat 17g 85% Cholesterol 95mg 32% Sodium 413mg 18% Total Carbohydrate 29g 11% Dietary Fiber 4g 15% Total Sugars 6g Protein 8g 16% Vitamin C 5mg 5% Calcium 242mg 19% Iron 4mg 23% Potassium 521mg 11% * 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.