1 c. butter
2 c. sugar
1 c. firmly packed brown sugar
6 lg. eggs
2 1/2 c. all purpose flour
1/4 tsp. baking soda
1/2 c. cocoa
1 (8 oz.) carton sour cream
2 tsp. vanilla
Powdered sugar optional

Beat butter at medium speed with an electric mixer about 2 minutes or until soft and creamy. Gradually add sugar, beating at medium speeds to 7 minutes. Add eggs one at a time, beating just until yellow disappears.

Combine flour, baking soda and cocoa. Add to creamed mix alternately with sour cream. Mix at low speed. Bake in bundt pan at 325 degrees for 1 hour 20 minutes or until wooden stick comes out clean.