Instructions: Beat butter at medium speed with an electric mixer about 2 minutes or until soft and creamy. Gradually add sugar, beating at medium speed 5 to 7 minutes. Add eggs one at a time, beating just until yellow disappears. Combine flour, baking soda, and cocoa; add to creamed mixture alternately with sour cream, beginning and ending with flour mixture. Mix at lowest speed just until blended after each addition. Stir in vanilla. Spoon batter into a greased and floured 10 inch tube pan. Bake at 325 degrees F. for 1 hour and 20 minutes or until a wooden pick inserted in center comes out clean. Cool in pan on a wire rack. Sprinkle with powdered sugar if desired.

Yield: 10 servings.

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