Thinly sliced potatoes layered with garlic-infused cream and baked slowly until tender and golden, a classic from the Dauphine region.
Gratin dauphinois is a French classic from the Dauphine region in the southeast, made from thinly sliced potatoes layered in a dish and baked slowly in garlic-infused cream (traditionally without cheese, despite common modern additions) until the potatoes turn meltingly tender and the top browns into a golden crust. It's often confused with gratin savoyard, which uses cheese and stock -- true gratin dauphinois relies entirely on cream and garlic for its richness. The technique that defines this dish is the slow, low bake: potatoes are sliced very thin (ideally with a mandoline for consistency), arranged in overlapping layers, and covered with cream infused with garlic and a touch of nutmeg, then baked at a moderate temperature for well over an hour so the potatoes cook through gently without the cream curdling or scorching. Pressing down on the potatoes partway through baking helps them settle into the cream evenly. Served as a rich side dish alongside roasted meats, gratin dauphinois is French comfort food at its most indulgent -- simple in ingredients but entirely dependent on patience and technique for its silky, luxurious result.
Serves 6
Preheat oven to 160C/325F. Rub a baking dish with the halved garlic clove, then butter it generously.
Warm cream, milk, minced garlic, nutmeg, salt, and pepper together in a saucepan over low heat until just steaming, about 5 minutes. Do not boil.
Arrange a layer of sliced potatoes in the dish, overlapping slightly. Pour a portion of the warm cream over. Repeat layering until all potatoes are used, finishing with cream on top.
Press the potatoes down gently with a spatula so they're mostly submerged in the cream.
Bake uncovered 80-90 minutes, until the potatoes are completely tender when pierced with a knife and the top is deeply golden.
Let rest 10-15 minutes before serving, which allows the cream to set slightly and makes serving neater.
Slice the potatoes as thin and evenly as possible, ideally with a mandoline -- uneven slices lead to some pieces being undercooked while others turn mushy.
Never boil the cream when infusing garlic; gentle warming prevents it from curdling or developing a scorched flavor.
Don't rush the bake time -- true gratin dauphinois needs the full hour-plus at moderate heat for the potatoes to become truly tender throughout.
Add a layer of grated gruyere between the potato layers for a heartier, though less traditional, cheese-enriched version.
Use a mandoline-thin mix of potato and celeriac for a more complex, earthy flavor.
Add fresh thyme sprigs to the infusing cream for extra herbal depth.
Refrigerate up to 3 days in an airtight container. Reheat covered in a 160C/325F oven for 20-25 minutes until warmed through, as microwaving can make the cream separate.
Gratin dauphinois originates from the Dauphine region in southeastern France, with its first documented recipe dating to the 18th century; purists insist on the cream-and-garlic-only version, without cheese, which is often added in modern adaptations but considered a departure from tradition.
Traditionally, no -- authentic gratin dauphinois relies solely on cream and garlic for richness; cheese is a common modern addition but technically makes it closer to gratin savoyard.
They were likely sliced too thick, or the oven temperature was too low. Slice as thin as possible and make sure your oven is properly calibrated to 160C/325F.
Yes -- it reheats well covered in a moderate oven, and some cooks find the flavor even better the next day once the potatoes have fully absorbed the cream.
Per serving (220g / 7.8 oz) · 6 servings total
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