1 c. butter
1 1/2 c. sugar
2 eggs
1 tsp. vanilla or lemon extract
3 c. flour
2 tsp. cream of tartar
1 tsp. baking soda
1/2 tsp. salt

Cream together first 4 ingredients. Add dry ingredients. Roll in balls. Flatten with bottom of a glass, buttered and dipped in sugar. Bake in 350 degree oven until bottoms are nicely browned.