Laura's Peanut Butter Cookies

½ cup butter shortening
½ cup peanut butter
½ cup sugar
½ cup firmly packed brown sugar
1 egg
2 Tbsp. Milk
1 tsp. Vanilla
1 1/3 cups flour
1 tsp. Soda
½ tsp. Salt

Cream first 4 ingredients. Add egg. Add milk and vanilla. Combine dry ingredients in separate bowl and add to creamy mixture. Shape into balls using about 1 tsp for each ball. Roll in granulated sugar. OR, press in criss-crossed shape with a fork. Bake on ungreased cookie sheet for 10-12 minutes at 375°.