I'm going to try to make Yorkshire pudding for a meal idea. I have never made it before. I have a limited variety of baking dishes to choose from so I'm not sure which one to use. Could I just use a square glass casserole dish? Or does it have to be a circle? I do have a few different size springform pans, but I'm assuming that the batter or grease would be runny enough to where it would leak out.