The toasty, caramelized sweetness of powdered milk is hard to ignore. While bakers know the kind of richness it can lend to certain desserts, few realize just how much of a multitasker it really is.

So, you just made this chocolate cake with brown butter frosting. It was great. Now you have a bag of milk powder and you don’t know what to do with it. Yes, you could make that cake every week for ...