Ginger Bread Cookies

I think these are by my mom Jane Davenport from our cookie club but it does not say on my paper with the recipe on it. Sorry.

Cream:

1/2 cup butter

1/2 cup shortening

1 cup sugar

1/2 cup brown sugar

1 egg

1/4 cup molasses

2 TB milk

Then Add:

3 1/2 cup flour

2 tsp. baking soda

2 tsp cinnamon

1 tsp ginger

1/2 tsp. Ground Cloves

Bake at 375 for 7-8 min