Beat butter/margarine with sugar until light and fluffy. Stir in flour until smooth and well combined.

Refrigerate dough, covered, for several hours.

Preheat oven to 300 degrees.

Divide dough into 2 parts.

On lightly floured surface, roll out dough, 1/3 inch thick. Cut out cookies (flour the cutters).

Bake on ungreased cookie sheets approximately 20-25 minutes, or until cooked.

When cool, dust with confectioners sugar.