Sugar Cookies

This is my all-time favorite sugar cookie recipe. I haven't found one that beats it yet. This recipe comes from the Set for Life Cookbook (that us, sisters, all own).

1 cup shortening
1 cup sugar
2 eggs
1/2 tsp. vanilla
3 cups unbleached white flour
1/2 tsp. soda
1/2 tsp. salt
1 tsp. baking powder
1/2 cup sour cream, plain yogurt, or buttermilk (I use sour cream)

Cream shortening, sugar, eggs, and vanilla. Add dry ingredients and sour cream. Mix well. Cover bowl, and chill dough at least 30 minutes. On floured surface, roll out to 1/8-inch thickness (or whatever you like). Cut into desired shapes. Place on ungreased cookie sheets. Bake in a 375 degree oven for 8 minutes. Do not over bake.