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Sweet Potato Gratin

This Sweet Potato Gratin is a deliciously creamy and cheesy dish, perfect for a cozy side dish or a comforting main. Layers of thinly sliced sweet potatoes are baked with a rich creamy sauce and topped with cheese to create a satisfying dish that everyone will love.
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Prep Time 20 minutes
Cook Time 55 minutes
Total Time 1 hour 15 minutes
Course Side Dish
Cuisine American
Servings 4 People
Calories 320 kcal

Equipment

  • 1 9x13 inch baking dish
  • 1 mandoline slicer
  • 1 mixing bowl
  • 1 saucepan
  • 1 whisk
  • 1 measuring cups and spoons
  • 1 aluminum foil

Ingredients
  

  • 2 pounds sweet potatoes About 3-4 medium sweet potatoes.
  • 1 cup heavy cream
  • 1 cup milk
  • 2 cups shredded sharp cheddar cheese Divided into two cups.
  • 2 cloves garlic Minced.
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon ground nutmeg
  • Fresh thyme for garnish Optional.

Instructions
 

  • Preheat your oven to 375°F (190°C). Grease the baking dish with butter or cooking spray.
  • Peel the sweet potatoes and slice them thinly using a mandoline slicer or a sharp knife to achieve even thickness.
  • In a saucepan over medium heat, combine the heavy cream, milk, minced garlic, salt, black pepper, and nutmeg. Heat until just simmering, stirring occasionally.
  • Layer half of the sweet potato slices in the bottom of the greased baking dish. Pour half of the cream mixture over the sweet potatoes, then sprinkle with 1 cup of shredded cheddar cheese.
  • Add the remaining sweet potato slices on top, and pour the rest of the cream mixture over them. Finish by topping with the remaining 1 cup of shredded cheddar cheese.
  • Cover the baking dish with aluminum foil and place it in the preheated oven. Bake for 40 minutes.
  • After 40 minutes, remove the foil and bake for an additional 15 minutes, or until the top is golden brown and bubbly, and the sweet potatoes are tender when pierced with a fork.
  • Once cooked, let the gratin sit for about 10 minutes before serving. Garnish with fresh thyme if desired.

Notes

For an extra kick, consider adding a pinch of cayenne pepper or some chopped chives to the cheese mixture.
This dish can be prepared ahead of time; simply assemble it up until the point of baking, chill it in the refrigerator, and then bake when ready.
Serve this Sweet Potato Gratin alongside roasted meats, salads, or as part of a festive holiday meal. Enjoy!