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Sweet Potato Gratin

This Sweet Potato Gratin is a creamy and delicious dish that combines layers of thinly sliced sweet potatoes with a rich, cheesy sauce. Perfect as a comforting side dish for any occasion.
Prep Time 20 minutes
Cook Time 45 minutes
Total Time 1 hour 5 minutes
Course Side Dish
Cuisine American
Servings 4 People
Calories 250 kcal

Equipment

  • 1 baking dish (9x13 inches)
  • 1 mandoline slicer or sharp knife
  • 1 mixing bowl
  • 1 whisk
  • 1 measuring cups and spoons
  • 1 aluminum foil

Ingredients
  

  • 3 large sweet potatoes About 2 pounds, peeled and thinly sliced.
  • 1 cup heavy cream
  • 1 cup milk
  • 2 cups shredded Gruyere cheese Or any cheese of your choice.
  • 2 cloves garlic Minced.
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon ground nutmeg
  • 1 tablespoon olive oil For greasing the baking dish.
  • ½ cup grated Parmesan cheese For topping.

Instructions
 

  • Preheat your oven to 375°F (190°C).
  • In a mixing bowl, combine the heavy cream, milk, minced garlic, salt, black pepper, and ground nutmeg. Whisk until well combined.
  • In the prepared baking dish, drizzle olive oil on the bottom to prevent sticking.
  • Arrange half of the sliced sweet potatoes in an even layer on the bottom of the dish.
  • Pour half of the cream mixture over the sweet potatoes, followed by half of the Gruyere cheese.
  • Repeat the layers with the remaining sweet potatoes, cream mixture, and Gruyere cheese.
  • Top the final layer with grated Parmesan cheese for a crispy topping.
  • Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes.
  • Remove the foil and bake for an additional 15 minutes, or until the top is golden brown and the sweet potatoes are tender.
  • Allow to cool for a few minutes before serving.

Notes

You can add herbs like thyme or rosemary for extra flavor.
This dish can be prepared a day in advance. Just cover with foil and refrigerate, then bake when ready to serve. Adjust baking time if cold from the refrigerator.