Boston Creams Cookies

This recipe is from recipegoldmine.com. I have had it hanging around for a long time but haven't tried it yet.

Cream butter and sugar to the consistency of mayonnaise , adding sugar gradually.

Add eggs one at a time , beating after each addition.

Add dry ingredients alternately with sour cream.

Drop by heaping teaspoons onto a cookie sheet and flatten slightly.

Bake at 400 degrees f for about 10 to 12 minutes.

butter, granulated sugar, eggs, vanilla extract, all-purpose flour, salt, baking powder, baking soda, sour cream