1 c. powdered sugar
1 c. lightly salted butter (softened)
2 c. flour
1 egg
1/2 tsp. baking soda
1 tsp. cream of tartar
1 tsp. vanilla

I mix all the ingredients together. Refrigerate for an hour or so. Form into teaspoon size balls. Dip flat end of glass in granulated sugar and flatten each ball very thin. Bake at 350 degrees until barely turning brown at edges.