You can do this with a wooden spoon, but it's much easier with a mixer. 1 pound butter 1 cup icing sugar 1/2 cup cornstarch 1 tsp vanilla 3 cups flour Cream the butter and sugar until very fluffy. Mix in the remaining ingredients and beat until fluffy. Form balls (about 1 tsp) and flatten slightly (I like to put colored sugar on top to make them look nice). Bake for 20 minutes at 325ºF.