1 1/2 c. butter, softened
1 c. sugar
2 egg yolks
3 c. unsifted all-purpose flour
1 tsp. vanilla
Dash salt

Cream butter and sugar. Blend in egg yolks, one at a time. Gradually add flour until well blended. Add vanilla and salt; mix thoroughly. Roll dough into 1 inch balls. Place 2 1/2 inches apart on ungreased baking sheet. Flatten with palm of hand or tines of fork. Preheat gas oven to 350 degrees. Bake 10 to 15 minutes. Cool on wire rack. Makes 7 dozen.