The butter fights with sugar. Add ground almonds or walnuts, flour and vanilla. So kneaded dough out onto a surface dusted with flour and roll it into a thin layer of 2 mm. With shapes in three sizes (large, medium and small) cut biscuits. With a wide kitchen knife or shovel biscuits carefully lifted and placed in a greased tray not very close to each other. Bake until pale pink. Once cool, also very carefully removed from the tray, because they are very fragile. Adhere to three (small on average over a large) with jam or honey. Sprinkle with powdered sugar. The biscuits have a very solemn look and are especially suitable for the Christmas holidays.