When I saw Rachel Ray make this on her show, I HAD to try it. Mmm...brushing the melted butter really does help make this sandwich. The maple mustard just adds so much. Now I crave this whenever I want a big protein fix. SO good. I prefer 4 slices of bacon per sandwich when the bacon is thin, and since I use regular wheat bread I use a bit less cheese (and all cheddar). Rachel kept the heat a bit lower on her show and now so do I. You want the cheese melty and gooey but the bread nicely browned.