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Close-up of a bubbly Sweet Potato Gratin with Gruyère in a cast iron skillet, topped with browned cheese and herbs.

Sweet Potato Gratin with Gruyère


  • Author: memorecipes.com
  • Total Time: 1 hr 25 min
  • Yield: 6-8 servings 1x
  • Diet: Vegetarian

Description

A creamy and savory gratin featuring sweet potatoes and Gruyère cheese.


Ingredients

Scale
  • 2 lbs sweet potatoes, peeled and thinly sliced
  • 1 cup heavy cream
  • 1/2 cup milk
  • 2 cloves garlic, minced
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 1/2 cups shredded Gruyère cheese
  • 2 tablespoons unsalted butter, melted

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. In a bowl, whisk together the heavy cream, milk, minced garlic, salt, and pepper.
  3. Arrange half of the sliced sweet potatoes in a single layer in a greased 9×13 inch baking dish.
  4. Sprinkle half of the Gruyère cheese over the sweet potatoes.
  5. Pour half of the cream mixture over the cheese and potatoes.
  6. Repeat the layers with the remaining sweet potatoes, Gruyère cheese, and cream mixture.
  7. Drizzle the melted butter evenly over the top.
  8. Cover the dish tightly with aluminum foil.
  9. Bake for 45 minutes.
  10. Remove the foil and bake for another 15-20 minutes, or until the top is golden brown and bubbly and the sweet potatoes are tender when pierced with a fork.
  11. Let it rest for 10 minutes before serving.

Notes

  • For a richer flavor, you can use all heavy cream.
  • If you don’t have Gruyère, Swiss or Emmental cheese can be substituted.
  • Ensure your sweet potato slices are uniform in thickness for even cooking.
  • Prep Time: 20 min
  • Cook Time: 1 hr 5 min
  • Category: Side Dish
  • Method: Baking
  • Cuisine: French

Nutrition

  • Serving Size: 1 serving
  • Calories: 350
  • Sugar: 15g
  • Sodium: 400mg
  • Fat: 25g
  • Saturated Fat: 15g
  • Unsaturated Fat: 10g
  • Trans Fat: 0g
  • Carbohydrates: 25g
  • Fiber: 4g
  • Protein: 8g
  • Cholesterol: 60mg

Keywords: sweet potato gratin, Gruyère cheese, potato bake, creamy gratin, cheesy potatoes, side dish, vegetarian recipe