Creamy scalloped potato gratin

Creamy scalloped potato gratin features layers of tender potatoes baked in a rich milk sauce infused with cheese and herbs. This comforting dish is easy to prepare and perfect for any gathering.

12 Dec 2025
Cook time 50 min
Prep time 20 min

Ingredients:

1 tsp olive oil
10 cups potatoes
2 tbsp butter
1 dash salt
1/2 tsp garlic powder
1 dash black pepper
3 oz cheddar cheese
1 cup milk (2% fat)
2 tsp fresh thyme
1 tsp bay leaf
1/4 tsp ground nutmeg
Creamy scalloped potato gratin

Creamy scalloped potato gratin is a delicious and comforting dish that's perfect for any occasion. This recipe combines velvety potatoes with a flavorful sauce, accentuated by cheese and aromatic herbs and spices. Easy to prepare yet rich in taste, this dish is sure to impress family and friends.

Instructions:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Prepare the Baking Dish: Grease a large baking dish with the olive oil to prevent sticking.
3. Slice the Potatoes: Thoroughly wash and peel the potatoes. Thinly slice them uniformly using a mandoline slicer or a sharp knife. Set aside.
4. Make the Sauce:
- In a medium saucepan over medium heat, melt the butter.
- Add the milk, salt, garlic powder, black pepper, thyme, bay leaf, and ground nutmeg to the melted butter. Stir continuously.
- Allow the mixture to heat until it’s just about to boil, then reduce the heat to simmer for 5 minutes to let the flavors meld.
- Remove from heat and discard the bay leaf.
5. Layer the Potatoes:
- Arrange a layer of the thinly sliced potatoes at the bottom of the prepared baking dish.
- Spoon a portion of the milk mixture over the potato layer.
- Repeat the layering of potatoes and milk mixture until all the potatoes and sauce are used up.
6. Add Cheese:
- Sprinkle the grated cheddar cheese evenly over the top layer of potatoes.
7. Bake: Cover the baking dish with aluminum foil and bake in the preheated oven for 45 minutes.
8. Brown the Top: After 45 minutes, remove the foil. Increase the oven temperature to 400°F (200°C) and bake uncovered for an additional 15 minutes, or until the top is golden brown and the potatoes are tender when pierced with a fork.
9. Serve: Once done, remove from the oven and let it cool for about 10 minutes before serving. This will allow the gratin to set and make it easier to cut into portions.

Cooking creamy scalloped potato gratin is a rewarding experience that yields a delectable side dish or main course. By following these steps and incorporating the given tips, you'll create a dish that's both savory and satisfying. Whether for a family dinner or a festive gathering, this gratin will surely become a favorite.

Creamy scalloped potato gratin FAQ:

What is the baking time for scalloped potato gratin?

Bake the scalloped potato gratin at 375°F (190°C) covered with aluminum foil for 45 minutes. Then, uncover and increase the temperature to 400°F (200°C) for an additional 15 minutes, until the top is golden brown.

How can I tell when the potatoes are done?

The potatoes are done when they are tender and can be easily pierced with a fork. Additionally, the top should be golden brown after the final baking phase.

Can I store leftovers of scalloped potato gratin?

Yes, store leftover scalloped potato gratin in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave before serving.

What are some good substitutions for cheddar cheese?

You can substitute cheddar cheese with Gruyère or mozzarella for a different flavor. For a dairy-free option, try using a plant-based cheese that melts well.

What type of potatoes work best for scalloped potato gratin?

Starchy potatoes like Yukon Gold or Russet potatoes are ideal as they become tender and creamy when baked. Waxy potatoes may not yield the same texture.

Cooking Tips:

- Choose high-starch potatoes like Russet or Yukon Gold for the best texture.

- Make sure the potato slices are uniform in thickness to ensure even cooking.

- For extra flavor, consider adding finely chopped onions or leek to the layers.

- Grate the cheese yourself rather than using pre-shredded cheese for a smoother sauce.

- Let the gratin rest for a few minutes before serving to allow the flavors to meld together.

Nutrition Facts

4 Servings
Calories 460kcal
Protein 15g
Carbohydrates 70g
Fiber 8g
Sugar 6g
Fat 16g

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