Pommes Sarladaises are the signature potato preparation of the Périgord — sliced potatoes cooked slowly in duck or goose fat until each slice is golden, tender, and perfumed with garlic and parsley. Named after the medieval town of Sarlat-la-Canéda in the Dordogne, this dish is inextricable from the region's foie gras and confit traditions, where rendered poultry fat is as fundamental as olive oil in Provence. The technique sits between sautéing and confiting: potatoes are cooked at a moderate temperature in generous fat, low enough that they become creamy within yet develop a delicate golden exterior without the aggressive crust of high-heat frying. Use waxy potatoes, peeled and sliced 4-5mm thick — slightly thicker than for Anna or dauphinois, as they need body to hold up during the long, gentle cooking. Heat 100-120g of duck fat in a wide, heavy-based pan until it shimmers but does not smoke — 150-160°C. Add the potatoes in a single layer (work in batches if necessary) and cook gently for 25-30 minutes, turning occasionally with a palette knife. The potatoes should not overlap or steam; each slice needs contact with the fat. The key is patience: resist the urge to increase heat. In the final 5 minutes, add 3-4 cloves of thinly sliced garlic and a generous handful of flat-leaf parsley. The garlic should turn golden and fragrant, not brown and bitter. Season with fleur de sel and a crack of pepper. Serve directly from the pan if possible — pommes Sarladaises lose their magic quickly once removed from the fat. The ideal accompaniment to confit de canard, magret, or any Périgordine preparation where the duck fat creates a harmonious bridge between meat and potato.
Duck or goose fat is essential, not optional — it defines the dish. Moderate temperature (150-160°C), patient cooking for 25-30 minutes. Single layer, no overlapping — each slice needs fat contact. Garlic and parsley added only in the final 5 minutes. 4-5mm slices — thicker than gratin, thinner than sauté.
Save and strain fat from confit de canard — it's already deeply flavoured and perfect for Sarladaises. A few slices of black truffle folded in at the end transforms this into pommes Sarladaises aux truffes — the definitive Périgord luxury. If using store-bought duck fat, reinforce its flavour by rendering some fresh duck skin in it first. Waxy potatoes like Ratte or Charlotte hold their shape perfectly.
Using butter or oil instead of poultry fat (entirely different dish). Cooking too hot, creating a hard crust without creamy interior. Overcrowding the pan, causing steaming instead of gentle frying. Adding garlic too early, resulting in burnt, bitter notes. Cutting too thin (disintegrates) or too thick (raw centres).
French Regional Cooking — Anne Willan