1 1/2 c. butter
2 c. sugar
2 eggs
2 tsp. vanilla
2 c. flour
3/4 c. cocoa
1 tsp. baking soda
2 c. Reese's peanut butter chips

Cream butter and sugar in large mixer bowl. Add eggs and vanilla; beat well. Combine flour, cocoa, baking soda and salt; gradually blend into creamed mixture. Stir in chips. Drop by teaspoons onto ungreased cookie sheet. Bake at 350 degrees for 8 to 9 minutes. Do not over bake. (Cookies are soft; they will puff during baking, flatten upon cooling.) Cool until set about 1 minute. Remove from cookie sheet; cool completely on wire rack.