1 c. butter, 2 sticks
1/2 c. brown sugar
1/2 c. white sugar
1 egg
2 1/2 c. flour
1 tsp. vanilla
1 tsp. baking soda
1 tsp. scant cream of tartar

Mix ingredients. Roll in balls and roll in sugar. Press down with glass and bake at 375 degrees until brown.