I've been making Rhonda's MMF for a few years now. I love it and so do my customers. I'll try to answer your questions as best I can. 1. melting marshmallows- microwave in 40 second intervals, stirring in between. total cooking time is 120 seconds (so 3 times). don't overcook. They will be soupy looking until you stir it and then they'll be completely melted. 2. Regardless of whether you add sugar by hand or use a mixer, don't start to combine it until you've added...