Chocolate Peanut Butter Bars

I'm a peanut butter addict, and these are so good!

Chocolate Peanut Butter Bars

2 sticks of butter or margarine
2 1/2 cups powdered sugar
1 cup smooth peanut butter
1 3/4 cup graham cracker crumbs
1 pkg. 12 oz. chocolate chips

Melt butter, then remove from heat. Add the peanut butter, sugar and graham cracker crumbs. Mix well. Spread the mixture in an ungreased pan. Press down evenly.

Melt chocolate chips. Next, spread the chocolate with a knife over the top of the peanut butter mixture. Chill for thirty minutes and then remove and cut into bars.