It's best to reheat a stack of pancakes at a time, in the oven at 160˚C / 320˚F covered with foil, for 10-15 minutes until warmed through. I find they easily go rubbery when heated in the microwave. If you are filling the pancakes, heat in a dry non stick frying pan, fill with cheese or your chosen filling, fold over the pancake then cook until the filling and pancake are warmed through.