Sugar Cookies & Best Frosting

First, Cream together:
1/2 cup      Crisco
1/2 cup      margarine
1-1/4 cup   sugar
1                egg

Next, Add:
1/2 cup      Milk

Then add:
1/2 tsp       Salt
1 tsp          baking soda
2 tsp          baking powder

Slowly add:
4-1/2 cups flour

Bake at 375° for 8-10 min

Frosting
2/3 cup       "soft" butter
4 cups         powdered sugar
2 tbs           milk
1 tsp           vanilla

Cream together - use food coloring as needed