Sweet Potato Gratin for Two

Name: Sweet Potato Gratin for Two
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Yield: 2 servings
Ingredients: 2 medium-sized sweet potatoes, peeled and thinly sliced; 1 cup heavy cream; 1/2 cup shredded Gruyère cheese; 2 tablespoons butter, melted; 1 teaspoon fresh thyme, chopped; Salt and pepper to taste; 1/4 cup breadcrumbs

Highlighted under: Baking & Desserts

When I first tried making Sweet Potato Gratin, it was an experiment to warm up a chilly evening. The combination of creamy layers of sweet potatoes and savory cheese caught my heart immediately. I found joy in the way butter and herbs elevated the dish, lending it an irresistible aroma. Over the years, I've honed this recipe down to a comforting delight that not only is a feast for the eyes but also warms the soul. This dish is perfect for date nights or a cozy dinner for two.

Created by

Quinn Harper

Last updated on 2026-01-10T01:25:10.453Z

During one chilly winter night, I decided to whip up a comforting dish that could showcase the humble sweet potato. I layered thin slices of sweet potato with a rich cream mixture, topping it all off with crunchy breadcrumbs and cheese. The result was a stunning blend of sweet, savory, and creamy flavors that made my kitchen smell divine. I realized that baking it slowly at a moderate temperature helps the flavors meld perfectly without burning the top.

After several attempts, I discovered that incorporating a sprinkle of fresh thyme truly elevates the dish. The subtle herbal notes balance out the creaminess, making each bite a delightful experience. I also learned that letting it rest a few minutes before serving allows the gratin to set, creating a better texture that holds together beautifully. You won't be disappointed!

        Why You'll Love This Recipe
        Deliciously creamy layers that are hard to resist
The perfect balance of sweet and savory flavors
Easy to prepare for an intimate dinner or special occasion

      

The Importance of Layering

Layering is a key technique in achieving that luscious texture of Sweet Potato Gratin. Make sure to overlap each layer of sweet potatoes slightly for even cooking and maximum creamy goodness. This method traps the moisture between the layers, leading to that delightful melt-in-your-mouth consistency. Each slice you serve should showcase the beautiful layering, as this adds visual appeal as well as flavor depth.

When layering, it's also crucial to apply the cream mixture evenly. Take care to make sure that every potato slice is coated with the rich blend of cream and seasoning. This not only enhances flavor but also prevents the potatoes from drying out during baking. Remember, each layer is an opportunity to build flavor, so don’t rush this step.

Cheese Choices and Their Roles

Gruyère cheese is an excellent choice for this gratin because it melts beautifully and brings a nutty flavor that complements the sweetness of the potatoes. If Gruyère isn’t available, a combination of fontina or aged cheddar can serve as great substitutes. Each cheese variation will contribute a different profile and texture, so feel free to experiment based on your preference.

Alongside cheese selection, consider adding a sprinkle of Parmesan on top for an extra depth of flavor and a crispy finish. The contrast between creamy layers and a crunchy topping is one of the highlights of this dish. Just be mindful of the salt content as both Gruyère and Parmesan can be quite salty; adjust the seasoning accordingly.

Storing and Reheating Tips

If you want to prepare this dish in advance, you can assemble it up to the baking stage. Just cover the dish with foil or plastic wrap and store it in the refrigerator for up to a day. When you’re ready to bake, just extend the initial baking time by about 10-15 minutes to ensure it heats through completely.

Once fully baked, leftover Sweet Potato Gratin can be stored in an airtight container in the refrigerator for about 3-4 days. To reheat, place it in a preheated oven at 350°F (175°C) until warmed through, approximately 20 minutes. Covering with foil can help prevent the top from browning too much during reheating.

Ingredients

Gather the following ingredients to create a delicious Sweet Potato Gratin for Two:

Ingredients

2 medium-sized sweet potatoes, peeled and thinly sliced
1 cup heavy cream
1/2 cup shredded Gruyère cheese
2 tablespoons butter, melted
1 teaspoon fresh thyme, chopped
Salt and pepper to taste
1/4 cup breadcrumbs

Make sure to prep all ingredients before starting the cooking process for best results.

Instructions

Follow these steps to create your Sweet Potato Gratin:

Preheat the Oven

Preheat your oven to 375°F (190°C). This ensures that the gratin cooks evenly and the top gets a nice golden brown.

Prepare the Cream Mixture

In a mixing bowl, combine heavy cream, melted butter, thyme, salt, and pepper. Stir until well blended.

Layer the Sweet Potatoes

In a small baking dish, layer half of the sliced sweet potatoes. Pour half of the cream mixture over the potatoes and sprinkle with half of the Gruyère cheese.

Finish Layering

Add the remaining sweet potatoes, pour the rest of the cream mixture on top, and finish with the remaining cheese and breadcrumbs.

Bake the Gratin

Cover the dish with aluminum foil and bake for 30 minutes. Remove the foil and bake for an additional 10 minutes, or until the top is golden and bubbly.

Let it Rest

Once baked, remove from the oven and let it rest for 10 minutes before serving. This allows for easier slicing and enhances flavors.

Enjoy your delicious Sweet Potato Gratin as a side dish or a main course!

Pro Tips

Feel free to experiment with different cheeses like cheddar or add a layer of spinach for extra nutrition.

Serving Suggestions

Sweet Potato Gratin pairs wonderfully with a crisp green salad dressed with a light vinaigrette. The acidity from the dressing cuts through the richness of the gratin, balancing the flavors on your plate. Additionally, consider serving it alongside roasted or grilled meats for a hearty, satisfying meal.

For a vegetarian option, this dish can take center stage when served with sautéed greens or a textured grain salad, making for a filling yet light dinner. This not only brings vibrant colors to the table but also elevates the dish with a fresh crunch.

Variations to Explore

You can customize the gratin by adding layers of cooked spinach or kale between the sweet potatoes for added nutrition and color. These greens will blend beautifully with the creamy texture, and the slight bitterness contrasts the natural sweetness of the potatoes.

For a spicy kick, consider integrating thinly sliced jalapeños or a sprinkle of chili flakes into the cream mixture. This will introduce a nice heat that can elevate the dish, appealing to those who love bold flavors.

Questions About Recipes

→ Can I make this gratin ahead of time?

Yes, you can prep the gratin and store it in the fridge before baking. Just add an extra 10-15 minutes to the baking time if it's cold from the fridge.

→ What can I serve with Sweet Potato Gratin?

This gratin pairs well with roasted meats, a fresh salad, or even on its own as a hearty vegetarian dish.

→ Can I substitute heavy cream with something lighter?

You could use half-and-half or a non-dairy cream alternative, but the texture and flavor will be slightly different.

→ How long will leftovers last?

Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven for best results.