Gratin Dauphinois | Classic French Potato Gratin

Published July 5, 2026

Few dishes say French comfort quite like a gratin dauphinois. It is deceptively simple: potatoes, cream, garlic, nutmeg, and time. No cheese, no flour, no shortcuts. The potatoes slow-bake in seasoned cream until they turn meltingly tender and the top sets into a burnished golden crust. This is the version they actually make in the Dauphiné, and once you taste how the starch thickens the cream on its own, you will understand why the classic never needed cheese to begin with.

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Why This Recipe Works

The whole dish turns on one trick: you do not rinse the sliced potatoes. That surface starch is what thickens the cream into a silky sauce as it bakes, so you never need flour or a roux. Simmering the slices in the cream first for a few minutes jump-starts that thickening and guarantees the centre cooks through evenly, not just the top. A waxy potato holds its shape through the long bake instead of collapsing into mash, and the low oven (320°F / 160°C) keeps the cream from splitting while the flavour of the garlic and nutmeg settles into every layer.

Dauphinois vs. the Look-Alikes

Here is the full recipe, with weights in both imperial and metric.

Jon Simon

Gratin Dauphinois | Classic French Potato Gratin

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The authentic gratin dauphinois from France’s Dauphiné region: thin slices of tender potato baked slowly in garlic-and-nutmeg cream until the top turns golden. No cheese, as tradition demands, just pure creamy comfort.

Print Recipe

Prep Time 25 minutes mins

Cook Time 1 hour hr 15 minutes mins

Total Time 1 hour hr 40 minutes mins

Ingredients

  

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• 2.2 lb waxy potatoes about 1 kg, Yukon Gold or similar
• 1⅔ cups heavy cream about 400 ml
• 1 cup whole milk about 250 ml
• 2 cloves garlic
• ¼ tsp nutmeg freshly grated
• 2 tsp butter about 10 g, for the dish
• salt and freshly ground black pepper

Equipment

• 1 Mandoline
• 1 Gratin dish
• 1 Large saucepan
• 1 vegetable peeler
• 1 Knife

Method

 

1. Preheat the oven to 320°F (160°C). Halve one garlic clove and rub it over the inside of a gratin dish, then butter the dish generously.
2. Peel the potatoes and slice them into thin 2 to 3 mm rounds, ideally on a mandoline. Do not rinse them: the starch helps the gratin set.
3. In a large saucepan, combine the cream and milk. Add the second garlic clove, crushed, the nutmeg, salt, and pepper. Bring to a gentle simmer.
4. Add the potato slices, stir gently, and cook over low heat for 8 to 10 minutes, stirring, until the liquid thickens slightly.
5. Pour everything into the dish, spread the slices evenly, and press down so the liquid just reaches the surface.
6. Bake for 1 hour to 1 hour 15 minutes, until the potatoes are tender (test with a knife tip) and the top is deeply golden.
7. Let rest for 10 minutes before serving: the gratin holds together better when sliced.

Nutrition

Serving: 1servingsCalories: 380kcalCarbohydrates: 30gProtein: 6gFat: 26gSaturated Fat: 16gFiber: 3gSugar: 3g

Notes

No cheese, really: traditional gratin dauphinois contains no cheese. Add gruyère and it becomes a gratin savoyard. For a gratinéed top, you can still scatter about 3 oz (80 g) grated gruyère over the surface 15 minutes before the end. Potato choice: use a waxy variety (Yukon Gold) that holds its shape; avoid starchy baking potatoes, which would fall apart. Lighter version: replace some of the cream with milk (about 1¼ cups milk to ¾ cup cream); the gratin stays creamy, just less rich. Low-carb version: swap the potatoes for cauliflower or celeriac for a creamy gratin far lower in carbs. Make ahead: assemble the gratin, cover, and refrigerate, then bake the same day, allowing a little extra time. A little history: gratin dauphinois comes from the Dauphiné region of southeastern France and is documented as far back as 1788; the original recipe is nothing more than potatoes, milk or cream, garlic, and nutmeg.

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Chef’s Tips

• Slice thin and even. A mandoline at 2 to 3 mm gives you slices that cook at the same rate. Uneven thickness is the number one reason a gratin has raw pockets.
• Do not rinse. It feels wrong, but the starch is your thickener. Rinsed potatoes give a thin, watery gratin.
• Press the layers down. Tamping the potatoes so the cream just reaches the surface keeps the top from drying out and helps the gratin slice cleanly.
• Let it rest. Ten minutes out of the oven lets the cream reabsorb, so each square holds together instead of sliding apart on the plate.

Frequently Asked Questions

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• Crispy Smashed Potatoes for a crunchier potato side.
• Cheesy Broccoli Cauliflower Casserole, the low-carb answer to a creamy gratin.
• Keto Cauliflower Mash Shepherd’s Pie when you want the comfort with fewer carbs.
• Potato Leek Soup, another creamy French-inspired classic.

Final Thoughts

Gratin dauphinois has survived since at least 1788 because it is honest food: a handful of ingredients treated with patience. Make it once the traditional way, no cheese, low oven, and you will see why the French never fussed with it. If you want it lighter, lean more on milk than cream. If you are watching carbs, the cauliflower version delivers the same creamy comfort. However you serve it, give it those ten minutes to rest, and it will reward you with the cleanest slice and the richest bite of the meal.