Glaçage might well be defined as the varnish for a cake, or for its frosting. When cakes are being glazed they are first brushed with a paint brush to remove the crumbs, then put on a wire cake rack which is set on a cooky sheet. The glaze is then poured over the cake. The weight of the glaze spreads it evenly over the surface and down the sides. The cooky sheet catches the glaze; then, once the glaze is set, the glaze is scooped up from the cooky sheet, put into a glass jar, covered and refrigerated. When needed, it is rewarmed and used. If there is a trick to a glaze, it is having it at the proper consistency so that it will behave.