1 c. butter
1 c. powdered sugar
1 beaten egg
1/2 tsp. salt
1 tsp. vanilla
1/2 tsp. cream of tartar
1/2 tsp. baking soda
2 c. flour

Cream together butter and sugar. Add remaining ingredients in order mixing well. Roll in small balls and dip in colored sugar. Bake until lightly brown in 325 degree oven.