"Bouillabaisse is a classic French dish from southern France, in particular, of the port town Marseille.It requires many different varieties of fish, and traditionally was made with whatever the fishermen hadn’t soldthat morning. There are plenty of variations of bouillabaisse, and even in Marseille you’ll find strong debates over the proper way to make it. The most important thing is that you should use several varieties of fish, and the fish should be very fresh. In Provence you would use a variety of Mediterranean fish, but here in the states where we can’t get those fish fresh, we have to make substitutions. Use firm fish for fillets such as sea bass, red mullet, haddock, halibut, cod, conger, or red porgy. Small whole fish can be added as well. Also traditional are mussels, squid, and crab...."