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

Heat oven to 350 degrees. Grease 15 1/2 x 10 1/2 x 1 inch jelly pan. In large mixer bowl, beat butter and sugar until light and fluffy. Add eggs and vanilla; beat well. Combine flour, cocoa, baking soda and salt; gradually blend into creamed mixture. Stir in chips. Spread batter into prepared pan; bake 20 minutes or until set. Cool completely; cut into bars.