Hachis Parmentier is a clever way to use leftovers: beef from a pot-au-feu or cooked beef tails, finely minced with parsley and bacon. You reduce it in the oven with port wine and broth for 35 minutes. Then purée on the bottom, hash in the middle, purée on top, and bake until golden at 220 °C. Plan on about 1 hour 30 minutes of preparation and cooking. Serve with frisée salad and garlic croûtons.

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