Make some puff-paste with equal weight of flour and butter, fold and roll it down six times, and put in a cold place. Leave it of a thickness of about one-quarter of an inch; cut it with a sharp knife in pieces of a rectangular shape, about four inches long and two broad, which cut again in two, across and from one corner to the other, so that you make two pieces of a right-angled triangle shape. Place the pieces on their sides in a bake-pan, on their sides, far apart, and bake in a very quick oven. When done, dust with sugar, and serve.
Vol-au-vent and bouchees for the day's use are baked early in the morning. They are warmed in a slow oven just before filling them.