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Sweet Potatoes Gratin Recipe
Why make this recipe
Sweet Potatoes Au Gratin is a delightful and comforting dish that brings the best of sweet potatoes to your table. This recipe makes a creamy, cheesy delight that works as a perfect side dish for any meal. The natural sweetness of the potatoes, combined with the richness of cheese and cream, creates a beautiful balance of flavors that is hard to resist. It’s not only delicious but also visually appealing, making it an excellent choice for gatherings and special occasions.

How to make Sweet Potatoes Au Gratin
Ingredients:
- 4 large sweet potatoes, thinly sliced
- 2 tablespoons butter
- 3 cloves garlic, minced
- 1 cup heavy cream
- 1 cup shredded cheese (cheddar or Gruyère)
- Salt and pepper to taste
- 1 teaspoon thyme (optional)
- 1/2 cup grated Parmesan cheese (for topping)
Directions:
- Preheat the oven to 375°F (190°C).
- In a skillet, melt butter over medium heat. Add minced garlic and sauté until fragrant.
- In a bowl, mix heavy cream, cheese, salt, pepper, and thyme (if using).
- In a greased baking dish, layer half of the sweet potatoes, then pour half of the cream mixture over them.
- Repeat the layers with the remaining sweet potatoes and cream mixture.
- Top with grated Parmesan cheese.
- Cover the dish with foil and bake for 30 minutes.
- Remove foil and bake for an additional 15-20 minutes until golden and bubbly.
- Let it cool for a few minutes before serving.
How to serve Sweet Potatoes Au Gratin
Serve Sweet Potatoes Au Gratin hot from the oven. It’s great as a side dish alongside roasted meats, grilled chicken, or even as a vegetarian main course. To make serving easier, consider using a spatula to help lift portions from the dish. A simple sprinkle of fresh herbs, like parsley or thyme, can enhance its presentation.
How to store Sweet Potatoes Au Gratin
If you have leftovers, store them in an airtight container in the refrigerator. They will be good for about 3 to 4 days. You can also freeze Sweet Potatoes Au Gratin. Make sure to let it cool completely before placing it in a freezer-safe container. It can be kept frozen for about 2 to 3 months.

Tips to make Sweet Potatoes Au Gratin
- Slice the sweet potatoes as evenly as possible to ensure they cook uniformly.
- If you want a bit more flavor, consider adding some chopped onions or bell peppers to the layers.
- Experiment with different cheese types. Mixing different cheeses can create a delightful flavor profile.
- For added texture, you can sprinkle some breadcrumbs on top before baking.
Variation
You can try adding cooked bacon or ham for a savory twist. Another variation includes adding a layer of spinach or kale for some extra greens.
FAQs
Can I use regular potatoes instead of sweet potatoes?
Yes, you can use regular potatoes, but they will have a different flavor and texture.Is this dish suitable for a gluten-free diet?
Yes, Sweet Potatoes Au Gratin is naturally gluten-free, as long as all ingredients used are certified gluten-free.Can I prepare this dish ahead of time?
Yes, you can prepare the dish in advance and store it in the fridge. Just bake it before serving.

Sweet Potatoes Au Gratin
Ingredients
For the Gratin
- 4 large sweet potatoes, thinly sliced
- 2 tablespoons butter for sautéing garlic
- 3 cloves garlic, minced
- 1 cup heavy cream
- 1 cup shredded cheese (cheddar or Gruyère) for mixing
- to taste Salt
- to taste pepper
- 1 teaspoon thyme (optional)
- 1/2 cup grated Parmesan cheese (for topping)
Instructions
Preparation
- Preheat the oven to 375°F (190°C).
- In a skillet, melt butter over medium heat. Add minced garlic and sauté until fragrant.
- In a bowl, mix heavy cream, cheese, salt, pepper, and thyme (if using).
Assembly and Baking
- In a greased baking dish, layer half of the sweet potatoes, then pour half of the cream mixture over them.
- Repeat the layers with the remaining sweet potatoes and cream mixture.
- Top with grated Parmesan cheese.
- Cover the dish with foil and bake for 30 minutes.
- Remove foil and bake for an additional 15-20 minutes until golden and bubbly.
- Let it cool for a few minutes before serving.



