1 (12 oz.) pkg. chocolate chips
3 c. peanut butter
5 sticks butter

Melt 6 minutes in microwave; add 1 cup vanilla. Add 2 pounds powdered sugar. Grease 2 medium pans or 1 large (I use two 9 x 12 inch). Beat until smooth; spread into pans and put in freezer. Keep refrigerated.