1/2 lb. butter
1/3 c. powdered sugar
1 tsp. vanilla
1 c. flour
3/4 c. cornstarch

Cream together butter, powdered sugar and vanilla. Add flour and cornstarch. Mix well. Make into balls the size of walnuts. Indent with finger. Bake in oven at 300 degrees for 20 minutes. Frost with butter frosting.