Chocolate Drop Cookies

1/2 C. butter

1 C. sugar

3/4 C. sour cream

1 egg

1 t. vanilla

1/2 t. soda

1/2 t. salt

1 3/4 C. flour

1/2 C. cocoa

Cream together butter and sugar until fluffy. Mix in egg and vanilla. Stir in sour cream until well blended.

Sift together all dry ingredients. Add to butter and sugar mixture. Blend well.

Drop by spoonful on a lightly greased baking sheet.