Tricia's Sugar Cookies

1/2 lbs. margarine (2 cubes)
1 cup sugar
1/3 cup powdered sugar
1 1/4 tsp. vanilla
1/2 tsp salt
4 cups flour unbleached
1 tsp. baking soda
1 TBSP baking powder
2 TBSP milk PLUS 2tsp milk
2 Eggs

Cream margarine, sugars, vanilla, salt; sift flour with soda and powder; beat egg and milk together slightly.
Alternate adding flour and egg mixtures to creamed mix. Roll out on floured surface 1/2" thick.
Bake @ 350* on parchment paper until just colored