1/2 c. (1 stick) butter, softened
1 c. sugar
1/2 c. packed light brown sugar
2 eggs
1 tsp. vanilla extract
2 c. all - purpose flour
1/3 c. Hershey's cocoa
1 tsp. baking soda
1/2 tsp. salt
1 (12 oz.) bag Hershey's semi-sweet chocolate chips

Heat oven to 350°F. In large mixer bowl, beat butter, sugar and brown sugar until well blended. Add eggs and vanilla, beat well. Stir together flour, cocoa, soda and salt. Gradually add to butter mix beat well. Stir in chips. Drop by teaspoon onto an ungreased cookie sheet.

Bake at 350°F for 9 to 11 minutes.