Sweet Potato Gratin for Two

Name: Sweet Potato Gratin for Two
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Yield: 2 servings
Ingredients: 2 medium sweet potatoes, peeled and thinly sliced; 1 cup heavy cream; 1 cup shredded Gruyère cheese; 1 teaspoon garlic powder; Salt and pepper to taste; Butter for greasing the dish

Highlighted under: Baking & Desserts

I love preparing Sweet Potato Gratin for Two when I want to treat myself to something special without a lot of fuss. The layers of sweet potato combined with cream and cheese create a comforting dish that feels indulgent yet remains simple to make. Aside from the delightful flavor, I appreciate how this gratin can be prepared ahead of time, allowing me to enjoy my evening without being tied to the kitchen. It’s perfect for cozy dinners or intimate gatherings with a loved one.

Created by

Delilah Spencer

Last updated on 2026-01-07T15:04:15.729Z

When I first stumbled upon the idea of Sweet Potato Gratin, I couldn't believe how well sweet potatoes can adapt to creamy, cheesy preparations. I decided to experiment with layering thinly sliced sweet potatoes with my favorite cheese blend, and the results were fantastic! The sweetness of the potatoes paired beautifully with the richness of the cream.

One of the tips I discovered along the way is to let the gratin sit for a few minutes before serving; this makes it easy to cut into perfect slices without the cheese oozing everywhere. Trust me, this little step makes all the difference!

        Why You'll Love This Recipe
        Creamy texture that perfectly balances the sweetness of the potatoes
Quick preparation with minimal cleanup
Ideal for two, making it a delightful dinner date option

      

Understanding Sweet Potatoes

Sweet potatoes are the star of this dish, offering a naturally sweet flavor that pairs beautifully with creamy cheese. It's essential to choose medium-sized sweet potatoes that are firm and free from blemishes. When slicing, aim for uniform thickness, around 1/8 inch, to ensure they cook evenly. If you're feeling adventurous, experimenting with colored sweet potatoes like purple or white can add a unique twist to the gratin, both in flavor and presentation.

For added depth of flavor, consider infusing the heavy cream with herbs such as thyme or rosemary before layering it in the gratin. Simply heat the cream with your chosen herbs over low heat until warm, then strain it to remove the herbs. This subtle change can elevate the dish, providing a more complex taste that complements the sweetness of the potatoes and the nuttiness of Gruyère cheese.

Techniques for Perfect Layers

Layering is key to achieving that coveted creamy texture in your Sweet Potato Gratin. Start with a base layer of sweet potatoes seasoned lightly with salt, pepper, and garlic powder. This allows flavors to build as you layer, rather than having all the seasoning concentrated at the top. Remember to spread the shredded Gruyère evenly; this not only impacts flavor but also ensures that the cheese melts uniformly, forming a beautiful, golden crust on top.

When repeating layers, it's essential to pour cream generously over each layer to ensure that every slice remains moist and creamy after baking. I like to use a spoon to distribute the cream evenly, which reduces the chance of dry spots in the final dish. Keep an eye on the timing; if you find that the gratin has set too firmly, a splash of additional cream can help loosen it up during reheating.

Ingredients

Gather these ingredients to prepare your delicious Sweet Potato Gratin:

Ingredients

2 medium sweet potatoes, peeled and thinly sliced
1 cup heavy cream
1 cup shredded Gruyère cheese
1 teaspoon garlic powder
Salt and pepper to taste
Butter for greasing the dish

Instructions

Follow these simple steps to create a delightful Sweet Potato Gratin:

Prepare the Oven and Dish

Preheat your oven to 375°F (190°C). Grease a small baking dish with butter to prevent sticking.

Layer the Sweet Potatoes

Arrange a layer of sweet potatoes at the bottom of the dish. Sprinkle a pinch of salt, pepper, and a dash of garlic powder over the layer. Then, add a layer of shredded Gruyère cheese.

Add Cream and Continue Layering

Pour a little cream over the cheese, then repeat layering with sweet potatoes, spices, and cheese until all ingredients are used, finishing with a layer of cheese on top.

Bake the Gratin

Pour any remaining cream over the top layer and cover the dish with foil. Bake in the preheated oven for 30 minutes, then remove the foil and bake for an additional 10 minutes or until the top is golden and bubbly.

Serve

Remove the gratin from the oven and allow it to sit for about 5 minutes before serving. This helps firm up the layers, making it easier to scoop.

Pro Tips

For added flavor, consider mixing in some fresh herbs like thyme or rosemary between the layers. A sprinkle of nutmeg can also enhance the creaminess and add warmth to the dish.

Make-Ahead and Storage

One of the best things about this Sweet Potato Gratin is its make-ahead potential. You can assemble it a day in advance and store it in the refrigerator covered with foil. This not only saves time but also encourages the flavors to meld together, enhancing the overall taste. Just make sure to take it out of the fridge about 30 minutes before baking to allow it to come to room temperature.

Leftover gratin can be stored in an airtight container for up to three days in the refrigerator. To reheat, cover it with foil to retain moisture, and bake at 350°F (175°C) until heated through, usually around 15-20 minutes. If you want to restore some of that original texture, remove the foil for the last few minutes of heating to allow the top to crisp up again.

Serving Suggestions

This Sweet Potato Gratin pairs wonderfully with a variety of dishes. For a complete meal, serve it alongside a simple green salad dressed with a light vinaigrette. The freshness of the salad balances the richness of the gratin, creating a harmonious dining experience. Alternatively, it makes a fantastic side dish for roasted meats or grilled fish, enhancing those dishes with its creamy, sweet profile.

For a festive twist, consider topping the gratin with panko breadcrumbs mixed with melted butter before baking. This will give the dish a delightful crunch that contrasts beautifully with the creamy layer. I often finish it off with a sprinkle of fresh herbs like chives or parsley to add color and a pop of freshness right before serving.

Questions About Recipes

→ Can I use other types of cheese?

Absolutely! While Gruyère adds a nice nutty flavor, you can mix it with cheddar, mozzarella, or any cheese you prefer.

→ How can I make this dish healthier?

You can replace some of the cream with low-fat milk or even a plant-based milk alternative. Additionally, consider using a cheese with less fat.

→ Can I prepare this ahead of time?

Yes, you can assemble the gratin ahead of time and keep it in the fridge for up to a day. Just remember to add a few extra minutes to the baking time.

→ What can I serve with Sweet Potato Gratin?

This gratin pairs well with a fresh salad, roasted vegetables, or a protein such as grilled chicken or fish.