Cream butter or margarine with sugar, add vanilla.
Add eggs and beat well.
Mix flour, salt, baking powder, and baking soda.
Add to creamed mixture alternately with sour cream.
You may add chocolate Chips or raisins, or sprinkle with colored sugar, or sugar and cinnamon before baking.
Drop on greased and floured cookie sheets.
Bake at 400 degrees for 10-12 minutes.
I have made these cookies for a number of years for my children, and now for grandchildren.
This recipe is fast and easy.