A Spanish dish from the Valencia region, paella is named for the cooking vessel itself: a round, shallow pan made of carbon steel that heats quickly and evenly. A good paella pan helps develop the socarrat, or crispy layer of rice crust on the bottom that's the most prized part of the dish. A large skillet will work as well if you don't have a paella pan. Look for short-grain Bomba or Valencia rice at specialty markets. Be aware that risotto rice like Arborio won't work here, since paella rice isn't meant to be creamy.