2 c. extra crunchy peanut butter
2 c. graham cracker crumbs
2 sticks melted butter
2 1/2 c. powdered sugar

Mix above ingredients and spread in 9 x 13 inch greased pan. 1 stick butter 1 (12 oz.) pkg. semi-sweet chocolate chips

In small saucepan, melt ingredients together. Spread over peanut butter mixture. Refrigerate for 30 to 50 minutes, no longer or chocolate will become brittle and taste less. Cut into small bars.