1/2 c. butter
1/3 c. sugar
1 egg yolk
1/2 tsp. vanilla or almond flavor
1 1/4 c. sifted flour

Cream butter with mixer. Add sugar, egg yolk, and flavor. Mix thoroughly. Sift in flour. Use a wooden spoon as this will be a fairly stiff dough.

Form 1/2-inch balls. Place on ungreased cookie sheet and flatten with a spoon or bottom of glass. Bake at 400 degrees for 7-9 minutes.