Here's the problem. I ordered the YP pan, but it ships from GB and will be here the second week of March!! I would like some before then. I have an 8" heavy cast iron skillet. Can I make it in that? how much batter should be in the bottom of the pan? Also, how long will the batter last in the 'fridge, or should I make more and warm them up/how? thanks in advance, capt david