This Sweet Potato Gratin is a delightful twist on the classic potato gratin, perfect for Thanksgiving or any special occasion. Layers of thinly sliced sweet potatoes are baked in a creamy, cheesy sauce infused with garlic and thyme, creating a savory-sweet dish that will wow your guests. This recipe serves 8-10 people.
Ingredients for Sweet Potato Gratin
- 3 pounds sweet potatoes, peeled and thinly sliced
- 2 cups heavy cream
- 4 cloves garlic, minced
- 2 tablespoons fresh thyme leaves, chopped
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 2 cups shredded Gruyere cheese
- 1/2 cup grated Parmesan cheese
- 2 tablespoons unsalted butter, cut into small pieces
How to Make Sweet Potato Gratin
- Preheat your oven to 375°F (190°C). Grease a 9×13-inch baking dish with butter.
- In a large saucepan, combine the heavy cream, minced garlic, chopped thyme, salt, and black pepper. Bring to a simmer over medium heat.
- Add the sliced sweet potatoes to the saucepan and cook for about 10 minutes, stirring occasionally, until the sweet potatoes are just tender.
- Remove the saucepan from the heat and stir in 1 1/2 cups of the shredded Gruyere cheese until melted and well combined.
- Transfer half of the sweet potato mixture to the prepared baking dish, spreading it out into an even layer.
- Sprinkle half of the remaining Gruyere cheese over the sweet potatoes.
- Repeat with the remaining sweet potato mixture and Gruyere cheese.
- Sprinkle the grated Parmesan cheese over the top of the gratin, then dot with the pieces of butter.
- Cover the baking dish with aluminum foil and bake in the preheated oven for 30 minutes.
- Remove the foil and bake for an additional 20-25 minutes, or until the top is golden brown and bubbly.
- Let the gratin cool for a few minutes before serving. Enjoy!
About the Main Ingredients
- Sweet Potatoes: Rich in vitamins, minerals, and fiber, sweet potatoes are a nutritious alternative to regular potatoes. They add a natural sweetness and vibrant color to this dish.
- Heavy Cream: Adds richness and creaminess to the gratin, making it indulgent and satisfying.
- Garlic: Infuses the dish with a savory flavor that complements the sweetness of the potatoes.
- Thyme: Adds an earthy, aromatic note that enhances the overall flavor profile of the gratin.
- Gruyere Cheese: Melts beautifully and adds a nutty, slightly sweet flavor to the dish.
- Parmesan Cheese: Adds a sharp, salty flavor and helps create a crispy, golden-brown crust on top of the gratin.
- Butter: Adds richness and helps brown the top of the gratin.
This Sweet Potato Gratin is sure to be a hit at your next gathering. Its creamy, cheesy goodness pairs perfectly with a variety of main dishes, making it a versatile and delicious side dish.