1/2 c. butter
1 tsp. vanilla
3 c. flour
1/2 tsp. baking powder
1 1/2 c. sugar
2 eggs
1 tsp. salt
1/2 tsp. baking soda

Cream butter, sugar, eggs and vanilla. Stir in with 1 cup sour cream. Drop from teaspoon onto greased cookie sheet. Sprinkle generously with white or colored sugar before baking. Bake at 375 degrees for 10 minutes.