• 1 cup butter 
• 1 1/2 cups powdered sugar 
• 1 egg 
• 1 tsp. vanilla
• 1 tsp. cream of tartar
• 2 1/2 cups flour
• 1/4 tsp salt
• 1 tsp. baking soda

Cream butter, sugar, egg and vanilla. Mix together dry ingredients in separate bowl and add to creamed mixture. Chill at least one hour. Preheat oven to 350 degrees. On a lightly floured surface, roll to 1/16 to 1/8 inch thickness and cut with cookie cutters. Bake on ungreased cookie sheets for 7 to 10 minutes (depending on how dark you like them). Also works well with cookie press.