1 1/4 c. butter
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. (1 - 12 oz. pkg.) Reeses peanut butter chips

Cream butter and sugar until light and fluffy. Add eggs and vanilla; beat well. Combine flour, cocoa, baking soda and salt; blend into creamed mixture. Stir in chips. Drop by teaspoonsful onto ungreased cookie sheet. Bake at 350 degrees for 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 4 1/2 dozen cookies.