Creamy French Potato Bake

Welcome to the ultimate comfort food experience with this decadent Creamy French Potatoes Au Gratin (dauphinoise Potatoes). Slices of tender potatoes baked in rich cream and melted cheese create a side dish that is impossible to resist.

Why You Will Love This Recipe

There is something magical about traditional French cooking, and this classic potato bake is no exception. This recipe creates a velvety smooth texture without using flour-based roux, relying entirely on the natural starches of the potatoes and rich dairy. It is surprisingly easy to put together, makes your kitchen smell amazing, and pairs wonderfully with almost any main course.

Ingredients

• 2 pounds Yukon Gold potatoes, peeled and sliced thin
• 1 1/2 cups heavy cream
• 1 cup whole milk
• 2 cloves garlic, minced
• 2 tablespoons unsalted butter, cut into small pieces
• 1 1/2 cups Gruyere cheese, freshly grated
• 1/2 cup Parmesan cheese, grated
• 1 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon ground nutmeg
• 1 sprig fresh thyme

Step-by-Step Instructions

1. Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius) and lightly grease a 9×13-inch baking dish with butter.
2. In a medium saucepan, combine the heavy cream, whole milk, minced garlic, salt, black pepper, nutmeg, and fresh thyme sprig over medium heat until it comes to a gentle simmer.
3. Add the thinly sliced potatoes directly into the warm cream mixture and let them simmer for about 8 to 10 minutes, stirring occasionally, until the potatoes begin to soften slightly.
4. Remove the saucepan from the heat and discard the fresh thyme sprig.
5. Transfer half of the potato slices into the prepared baking dish, spreading them out evenly, and sprinkle one third of the grated Gruyere and Parmesan cheese mixture over the top.
6. Layer the remaining potatoes over the cheese, pouring the leftover creamy garlic sauce evenly across the entire dish.
7. Dot the top of the potatoes with the small pieces of unsalted butter and cover with the remaining grated cheeses.
8. Bake uncovered in the preheated oven for 45 to 55 minutes until the top is golden brown and bubbling, and the potatoes are tender when pierced with a fork.
9. Allow the potato bake to rest for 15 minutes before serving so the creamy sauce can set slightly.

Expert Tips / Pro Tips

For the best results, slice your potatoes as uniformly as possible using a mandoline slicer so they cook at the exact same rate. Do not rinse the potato slices in water after cutting, because you want to keep the natural starch to help thicken the cream sauce naturally. Always grate your own cheese from a block rather than buying pre-shredded varieties, which contain anti-caking agents that prevent a smooth melt.

Variations & Substitutions

If you want to switch up the flavors, you can infuse the warm cream with a peeled shallot or a bay leaf alongside the garlic. While Gruyere offers the most authentic French flavor profile, you can easily substitute it with sharp white cheddar, Fontina, or Emmental cheese. For a richer herbal note, mix in a tablespoon of finely chopped fresh rosemary or chives between the potato layers.

Serving Suggestions

This decadent potato dish pairs wonderfully with roasted meats like prime rib, roasted chicken, or pan-seared pork chops. Balance the rich, creamy texture of the potatoes by serving them alongside a crisp green salad tossed in a sharp vinaigrette or a side of steamed green beans.

Storage, Freezing & Reheating

Store any leftover potato bake in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave or warm an entire dish in the oven at 350 degrees Fahrenheit until heated through. Freezing is generally not recommended because dairy-heavy sauces can separate and change texture upon thawing.

Nutrition Information

FAQ

Can I make this recipe ahead of time?

Yes, you can assemble the entire dish a few hours in advance, cover it, and keep it in the refrigerator until you are ready to bake. You may just need to add an extra 10 minutes to the total baking time since it will be going into the oven cold.

Do I need to peel the potatoes?

Peeling is recommended for traditional dauphinoise potatoes to achieve a silky smooth texture and uniform appearance. However, if you use thin-skinned Yukon Gold potatoes, you can leave the skins on for a rustic presentation.

Why are my potatoes still crunchy after baking?

This usually happens if the potato slices were cut too thick or if they were not simmered long enough in the warm cream mixture beforehand. Make sure to follow the stovetop simmering step to jump-start the cooking process.

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Creamy French Potato Bake

A classic, comforting French gratin featuring thinly sliced potatoes baked in garlic-infused heavy cream and Gruyère cheese.

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Cook Time 1 hour hr

Total Time 1 hour hr 20 minutes mins

Servings: 6 servings

Course: Main Course, Side Dish

Cuisine: French

Calories: 420

Ingredients Method Notes

Ingredients

  

Gratin Ingredients

• 2.5 lbs Yukon Gold potatoes peeled and sliced 1/8-inch thick
• 1.5 cups heavy cream
• 0.5 cup whole milk
• 2 cloves garlic minced
• 1.5 cups Gruyère cheese freshly grated
• 2 tbsp unsalted butter cut into small pieces
• 1 tsp salt
• 0.25 tsp black pepper
• 0.25 tsp ground nutmeg

Method

 

Instructions

1. Preheat your oven to 375°F (190°C) and lightly butter a 9×13-inch baking dish.
2. In a medium saucepan, combine the heavy cream, whole milk, minced garlic, salt, black pepper, and ground nutmeg. Warm over medium-low heat for about 5 minutes to infuse the flavors, without letting it boil.
3. Arrange a third of the sliced potatoes evenly in the bottom of the prepared baking dish, overlapping slightly.
4. Sprinkle one-third of the grated Gruyère cheese over the potato layer and ladle a portion of the warm cream mixture on top.
5. Repeat the layers two more times with the remaining potatoes, cream, and cheese, finishing with a generous layer of cheese on the very top and dotting with pieces of butter.
6. Cover the baking dish loosely with aluminum foil and bake for 40 minutes.
7. Remove the foil and bake for an additional 20 to 25 minutes, or until the potatoes are fork-tender and the top is golden brown and bubbly.
8. Let the potato bake rest for 10 minutes before slicing and serving to allow the sauce to set.

Notes

For best results, do not rinse the potato slices after cutting; the natural starches help thicken the creamy sauce.