Râpées (also râpées or Grumbeerekiechle in Alsatian dialect) are the crispy potato pancakes of Alsace-Lorraine: grated raw potatoes mixed with eggs, flour, and seasoning, fried in lard or goose fat until shatteringly golden on both sides with a soft, steaming interior. These appear under various names across the region — Kartoffelkiechle, Grumbeerekiechle, râpées — but the technique is universal and the result is one of the most addictive preparations in the Alsatian home kitchen. The potatoes must be a starchy variety (Bintje or similar), peeled and grated on the coarse side of a box grater or through a food processor’s grating disc. The critical step: the grated potato is placed in a clean cloth and squeezed firmly to express as much water as possible — excess moisture is the enemy of crispness, causing the pancakes to steam rather than fry. The expressed liquid is allowed to settle for 5 minutes, and the white potato starch that sediments to the bottom is reclaimed and added back to the grated potato (this starch aids crispness and binding). To the drained, starch-enriched potato (500g), add 1 beaten egg, 2 tablespoons of flour, a finely minced small onion (optional but traditional), salt, pepper, and a grating of nutmeg. The mixture is formed into flat cakes of 8-10cm diameter and 1cm thickness, and fried in 5mm of hot lard or goose fat (180°C) for 3-4 minutes per side until deeply golden and crisp. The fat must be hot enough that the pancakes sizzle aggressively on contact — if the fat is too cool, the potatoes absorb oil and become greasy rather than crisp. Drain on paper and serve immediately with crème fraîche, applesauce (compote de pommes), or alongside smoked meats and sauerkraut. These pancakes do not wait — they must be eaten within minutes of frying, as they lose their crispness rapidly.
Starchy potato variety, coarsely grated. Squeeze out excess water thoroughly. Reclaim settled potato starch. Flat cakes 8-10cm, 1cm thick. Fry in hot lard or goose fat at 180°C. 3-4 minutes per side until deeply golden. Serve immediately.
Add a tablespoon of cornstarch to the mixture for extra shatteringly crisp edges. Keep finished pancakes warm on a wire rack in a 120°C oven while frying batches (never stack them or they steam). For a richer version, fold in 2 tablespoons of crème fraîche before frying.
Not squeezing out enough water, producing soggy pancakes. Oil temperature too low, causing grease absorption. Making them too thick (over 1.5cm), leaving raw centre. Using waxy potatoes (not enough starch for crispness). Making too many at once and letting them sit while frying more batches.
La Cuisine Alsacienne (Simone Morgenthaler)