Classic French Gratin Dauphinois – Creamy Potato Bake Recipe

Gratin Dauphinois is a classic French potato dish known for its creamy texture and rich flavor. Made with thinly sliced potatoes baked in cream, this comforting dish is perfect as a side for meat, fish, or even as a main dish.

Whether you’re hosting a dinner party or craving a cozy homemade meal, this traditional gratin recipe is guaranteed to impress!

Prep & Cooking Time

• Prep Time: 20 minutes
• Cook Time: 1 hour
• Total Time: 1 hour 20 minutes

Ingredients (Serves 6)

• 3.5 lbs potatoes (Yukon Gold or Russet)
• 2 cups heavy cream
• 1 cup whole milk
• 2 cloves garlic
• 3 tbsp butter
• ½ tsp nutmeg (optional)
• Salt & black pepper to taste

How to Make Gratin Dauphinois

Step 1: Prepare the Potatoes

1. Peel the potatoes and rinse them under cold water.
2. Slice them very thin (about ⅛ inch thick) using a mandoline slicer or a sharp knife.
3. Do not rinse after slicing to keep the natural starch, which helps the gratin bind together.

Step 2: Make the Cream Mixture

1. In a saucepan, combine heavy cream and whole milk.
2. Peel the garlic cloves, crush them lightly, and add them to the mixture.
3. Add salt, pepper, and nutmeg (if using) and heat gently without boiling.

Step 3: Assemble the Gratin

1. Butter a baking dish generously, ensuring the sides are coated.
2. Arrange the potato slices in even layers for consistent cooking.
3. Remove the garlic from the cream mixture, then pour the warm liquid over the potatoes, covering them completely.

Step 4: Bake the Gratin

1. Preheat the oven to 320°F (160°C).
2. Dot the top of the gratin with small pieces of butter for a light golden finish.
3. Bake for 1 hour, or until the potatoes are tender (test with a knife).
4. Let the gratin rest for 5 minutes before serving to allow it to set properly.

Nutritional Information & Health Benefits

Nutritional Value (Per Serving – 1 Cup)

• Calories: ~320 kcal
• Carbs: 35g
• Protein: 5g
• Fat: 18g

Health Benefits of Key Ingredients

• Potatoes – High in fiber, vitamin C, and B6, they provide long-lasting energy.
• Cream & Milk – Great sources of calcium, promoting strong bones.
• Garlic – Packed with antioxidants, it supports heart health.
• Nutmeg – A natural digestive aid that enhances the flavor of the dish.

Zoé’s Tips for the Perfect Gratin

• For an extra creamy texture, swap some milk for more heavy cream.
• Want a crispy golden top? Add a sprinkle of grated cheese (not traditional but delicious!).
• Make-ahead tip: Prepare the gratin earlier in the day and reheat at 250°F for 20 minutes before serving.
• Individual portions: Bake the gratin in small ramekins for an elegant dinner presentation.

Best Pairings for Gratin Dauphinois

Gratin Dauphinois pairs beautifully with:

• Roast meats – Try roast lamb, beef tenderloin, or baked chicken.
• Grilled or pan-seared fish – A great match with salmon or cod.
• A fresh green salad – A light vinaigrette balances the richness of the gratin.

Recipe Variations & Substitutions

• Cheesy Gratin Dauphinois – Not traditional, but a sprinkle of Gruyère or Parmesan on top adds a crispy golden layer.
• Vegetarian Twist – Add sautéed mushrooms or spinach between the potato layers.
• Sweet Potato Gratin – Swap half the potatoes for sweet potatoes for a subtle sweetness.
• Quick Version – Instead of baking, simmer the potatoes in the cream mixture for 20 minutes, then finish in the oven for 20 minutes.

Classic Gratin Dauphinois is the ultimate French comfort food—simple, rich, and satisfying. Whether served as a holiday side dish or a weeknight favorite, this creamy potato bake is guaranteed to become a staple in your kitchen.

Give it a try, and enjoy the authentic taste of French cuisine at home!