1 c. butter
1 c. shortening
1 c. white sugar
1 c. powdered sugar
Pinch of salt
2 eggs, beaten
1 tsp. vanilla
2 tsp. cream of tartar
1 tsp. baking soda
4 1/3 c. flour

Cream first 7 ingredients. Sift, then add flour, soda and cream of tartar. Roll in balls and flatten with glass dipped in sugar. May add red or green sprinkles. Bake 7-8 minutes at 375 degrees.