Cooking Know-How
For best results, do not substitute margarine for the butter in this recipe as it will cause the dough to spread excessively on the baking sheet as the cookies bake. Also to help minimize the spreading, make sure that the dough is well chilled before rolling into balls.
Storage Know-How
Store cookies in single layers in a tightly covered container with sheets of wax paper between each layer to prevent the cookies from sticking together.