Sweet Potato Gratin


Sweet and savory gratin packed with flavor and nutrition.

Prep Time:
25 mins
Cook Time:
35 mins
Total Time:
1 hrs
1 casserole


  • cooking spray

  • 2 cups heavy cream

  • ½ stick 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 Gruyere cheese


  1. Preheat the oven to 400 degrees F (200 degrees C). Grease a baking dish with cooking spray.

  2. Combine cream, butter, and garlic in a saucepan. Bring to a simmer; remove from heat and mix in parsley, thyme, sage, rosemary, salt, and pepper.

  3. Arrange 1/2 of the sweet potato slices in the prepared baking dish; cover with 1/2 of the Gruyere cheese. Pour cream mixture on top. Arrange remaining sweet potato slices over the cream. Sprinkle remaining cheese on top.

  4. Bake in the preheated oven until golden brown and bubbly, about 30 minutes.


Please note that the magazine version uses 3/4 cup each cream and milk instead of 2 cups cream and is baked for an extra 15 minutes.

Nutrition Facts (per serving)

391 Calories
28g Fat
29g Carbs
8g Protein
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
Vitamin C 5mg 24%
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.

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