Cream 1 cup of butter or margarine and 3/4 cup brown sugar. Add 1 egg yolk, 1/2 tsp single fold vanilla, 2 cups flour and 1/2 tsp baking powder. Place spoonfuls on ungreased cookie sheet, about 2 inches apart, and bake at 350 degrees for about 10 minutes.
1
cup
Butter or margarine