2 sticks butter
Scant 1 c. confectioners' sugar
2 c. flour
Scant 1 c. cornstarch
Pinch of salt

Cream butter and sugar. Thoroughly mix until soft and light. Gradually work in flour and cornstarch and knead until smooth. This whole process can be done in the food processor. Press into greased 12x8 inch tin. Bake at 325 degrees for 35-40 minutes. Prick all over with fork and dredge with confectioners' sugar while hot. Leave in tin to cool.