I heat on the stove and shake cereal in a paper grocery sack. -2021
Dec 2022 tried microwave directions and the sauce was so thick and sticky, even thinning it out with milk I didn’t give it enough and about 1/4 of the cereal didn’t get coated in chocolate. Still a great recipe for amounts(I don’t use near the powdered sugar 1/2-1# is plenty imo), but I will stick to stove top in the future.