1 cup butter
1 cup creamy peanut butter
1 package (16 oz.) powdered sugar
1 package (12 oz.) chocolate chips
Melt butter. Add peanut butter. Stir. Remove from heat. Add powdered sugar a little at a time, stirring in until smooth. Press into 8 x 8 inch pan.
Melt chocolate chips in microwave oven on high, stirring after 1 minute and checking every 30 seconds thereafter.
Stir well and spread on top of peanut butter mixture. Let stand to cool or chill. Cut into squares.