1 1/4 c. butter, softened
2 c. sugar
2 eggs
2 tsp. vanilla extract
2 c. all-purpose flour
3/4 c. Hershey's cocoa
1 tsp. baking soda
1/2 tsp. salt
1 2/3 c. (10 oz. pkg.) Reese's Peanut Butter Chips

Heat oven to 350 degrees F. In large mixer bowl, beat butter and sugar until light and fluffy. Add eggs and vanilla; beat well. Stir together flour, cocoa, baking soda and salt; gradually blend into butter mixture. Stir in chips.

Drop by rounded teaspoonfuls onto ungreased cookie sheet. Bake 8 to 9 minutes. (Do not overbake; cookies will be soft. They will puff while baking and flatten while cooling.) Cool slightly; remove from cookie sheet to wire rack. Cool completely. About 4 1/2 dozen cookies.