Sour Cream Sugar Cookies

These are my favorite sugar cookies.  They are very soft and thick. 

1 cup shortening

2 cups sugar

2 eggs

3/4 cup sour cream

1 teaspoon vanilla

5 cups flour

1 teaspoon soda

2 teaspoons baking powder

Cream together shortening and sugar.  Add eggs, sour cream and vanilla.  Add dry ingredients.  Roll out thick and cut into shapes.  Bake 8 to 10 minutes at 350 degrees.  Don't overbake.  They should not be brown at all.  

Cream Cheese Frosting

1 8 ounce package cream cheese

1/2 cup margarine

2 teaspoons vanilla

16 ounce package powdered sugar

Blend together cream cheese, butter or margarine and vanilla until smooth.  Gradually add powdered sugar.