One dish to feed 20 people. Amazing. Delicious. My mouth is salivating just thinking about it. Apparently, according to the Paella Queen herself, the key ingredient is the caldo. The broth made from boiling parts of chicken, pig, carne, and fish is what gives the Paella its rich flavor. Though... it could also be the chunks of squid, shrimp, pork, and mussels that make you want to eat bite after bite, well past the point of completely satiated. This stuff is a gift from the gods.