Egg stir the sugar, add the butter, vanilla, and flour sifted with baking soda. Knead dough tightly. Pass through a meat grinder. Dough, which comes out of it is used to form a fine dough lace. The easiest way to shape lace is to let the dough to fall like a thread over one another. Occasionally interrupted threads and put in a baking dish shaped piles of paper covered. Cakes bake at medium temperature. The baked and cooled down Dante sprinkle with powdered sugar.