Potato gratin

Potato gratin is a comforting dish made with thinly sliced potatoes, creamy milk, and a touch of nutmeg and thyme. This deliciously cheesy bake is perfect for gatherings and adds a rich texture to any meal.

20 Jan 2026
Cook time 75 min
Prep time 20 min

Ingredients:

6 potatoes
3 cups milk (1% fat)
1 cup heavy whipping cream
1 tbsp fresh thyme
1 tsp ground nutmeg
1 onion
1/3 cup grated parmesan cheese
Potato gratin

Potato gratin is a classic and comforting dish that combines thinly sliced potatoes with a creamy, cheesy sauce. This recipe utilizes fresh thyme and a hint of nutmeg to elevate its flavors, making it perfect for any family gathering or special occasion. The combination of milk, heavy whipping cream, and parmesan cheese creates a luscious texture that enhances the natural richness of the potatoes.

Instructions:

1. Preheat the Oven:
- Preheat your oven to 375°F (190°C).
2. Prepare the Potatoes:
- Peel and thinly slice the potatoes. Aim for slices that are about 1/8-inch thick for even cooking. You can use a mandoline slicer to achieve consistent thickness.
3. Prepare the Onion:
- Peel and thinly slice the onion.
4. Create the Cream Mixture:
- In a large pot, combine the milk, heavy whipping cream, fresh thyme, and ground nutmeg.
- Place over medium heat and bring to a gentle simmer, stirring occasionally to prevent burning or sticking.
5. Layer the Ingredients:
- In a greased baking dish, start with a layer of the thinly sliced potatoes.
- Spread a layer of sliced onions over the potatoes.
- Repeat these layers until all the potatoes and onions are used, finishing with a top layer of potatoes.
6. Pour the Cream Mixture:
- Carefully pour the heated cream mixture over the layers of potatoes and onions, ensuring even distribution.
7. Add the Cheese:
- Sprinkle the grated Parmesan cheese evenly over the top layer.
8. Bake:
- Cover the baking dish with aluminum foil and bake in the preheated oven for 45 minutes.
- After 45 minutes, remove the foil and continue baking for an additional 15-20 minutes, or until the top is golden brown and the potatoes are tender when pierced with a fork.
9. Rest:
- Let the gratin rest for about 10 minutes before serving. This will help the dish set and make it easier to serve.
10. Serve:
- Slice into portions and enjoy your creamy, savory potato gratin.

Potato gratin is a delightful dish that brings warmth and comfort to any meal. With its creamy texture and savory taste, it is sure to be a crowd-pleaser. Whether you're serving it as a side dish or a main course, its beautiful presentation and rich flavors make it a standout recipe. Enjoy your homemade potato gratin with family and friends, and savor the deliciousness!

Potato gratin FAQ:

What is the baking time for potato gratin?

Bake the potato gratin covered with aluminum foil for 45 minutes at 375°F (190°C). Then, remove the foil and bake for an additional 15-20 minutes until the top is golden brown.

How do I know when the potato gratin is done?

The gratin is done when the top is golden brown and the potatoes are tender when pierced with a fork. If they are still firm, continue baking and check every 5 minutes.

Can I substitute the heavy cream in this recipe?

Yes, you can substitute heavy cream with half-and-half for a lighter version, though it may alter the richness and creaminess slightly. Avoid using low-fat milk alone as it won't provide the same texture.

What type of potatoes is best for potato gratin?

Starchy potatoes like Russets or Yukon Golds are best for potato gratin as they break down slightly and create a creamy texture while providing a good structure.

How should I store leftover potato gratin?

Store any leftovers in an airtight container in the refrigerator for up to 3 days. You can reheat it in the oven or microwave, though the texture may change slightly.

Cooking Tips:

- Slice potatoes thinly and evenly.: Use a mandoline or a sharp knife to ensure the potatoes are uniformly sliced. This helps them cook evenly and absorb the creamy sauce properly.

- Season layers well.: Season the potato slices with salt and pepper as you layer them in the dish to ensure every bite is flavorful.

- Infuse milk with onion, thyme, and nutmeg.: Gently heat the milk with the chopped onion, fresh thyme, and ground nutmeg before adding it to the potatoes. This enhances the depth of flavor in your gratin.

- Cover with foil for even cooking.: Cover the gratin with foil for the first half of the baking time to prevent the top from burning while the potatoes cook through. Remove the foil towards the end to allow the cheese to brown.

- Let it rest before serving.: Allow the gratin to rest for 10-15 minutes after baking. This helps it set and makes it easier to serve.

Nutrition Facts

8 Servings
Calories 280kcal
Protein 8g
Carbohydrates 33g
Fiber 3.92g
Sugar 8g
Fat 13g

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