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

Cream butter, sugar, vanilla and egg. Add remaining ingredients. Mix. Put spoonfuls of dough on cookie sheet. Press down with a fork and sprinkle with sprinkles. Bake at 350 degrees for 8 to 10 minutes.