1-1/4 c butter, softened
1 c sugar
1 eggs
2 T milk
1 t vanilla extract
4 c unbleached white flour
2 t baking powder
1 t salt

Cream the butter and sugar together in a large bowl. Add the eggs, milk, and vanilla and mix well. Add the salt and baking powder to creamed mixture, and mix well. Add the flour and stir until just combined. Divide dough into four 2-cup portions. Cover and refrigerate.