Hachis de Bœuf Parmentier

Hachis de Bœuf Parmentier (beef hash in baked potato shells) teaches the proper use of cooked meat: don't grind it into anonymity. Dice it, match its loose volume with the baked potato pulp, and let just enough Sauce Lyonnaise bind the two. The one true thing to know before you touch a pan is that the filling must remain a hash, moist enough to hold together but dry enough that the shell stays crisp.

The entry was written for a kitchen where a saucier kept Sauce Lyonnaise ready from stock never far from the fire, a tammy sat within reach, and a hot service oven waited. At home, use the finished sauce from its own preparation, a fine-mesh sieve in place of the tammy, and the upper third of a fully heated oven. A salamander isn't wanted here; the entry calls for a second bake, not a gratin crust. The napkin-lined serving dish is brigade ceremony and can go. The baked shell, equal measures of beef and potato, buttered onion, parsley, vinegar, and second bake are the dish, so every one stays. One cook, one stove, one evening.

Slice the caps off the moment the potatoes are tender and hollow them while they're still hot, using a narrow teaspoon where the old kitchen used a spoon handle. This is the step that matters most. Leave a sturdy wall beneath the skin and don't pierce the bottom; those intact shells are what turn excellent leftovers into supper worth carrying proudly to the table.