In 2 quart saucepan melt butter, chocolate chips and peanut butter. Pour Crispix into large bowl. Slowly pour chocolate mixture over Crispix. Gently fold mixture over until all Crispix are covered.
Take a medium white kitchen trash bag and put 1/2 pound powdered sugar into the bottom. Pour the bowl of chocolate covered cereal on top of the sugar. Cover with the rest of the sugar. Tie top of bag and gently shake the bag. The Crispix are not individuals and each one tastes like a peanut butter cup. After cooling, place in an airtight container. Will keep for several weeks.
