1 1/4 c. butter, softened
2 c. sugar
2 eggs
2 tsp. vanilla
2 c. unsifted all-purpose flour
3/4 c. Hershey's cocoa
1 tsp. baking soda
1/2 tsp. salt
2 c. (12 oz. pkg.) Reese's peanut butter chips or chocolate chips

Cream butter and sugar in large mixer bowl until light and fluffy. Add eggs and vanilla; beat well. Combine flour, cocoa, baking soda and salt; gradually blend into creamed mixture. Stir in peanut butter chips.