Bouillabaisse was created in Marseilles in the Provence region of France as a way for fishermen to use up the less-desirable fish that didn’t sell at the market that day. The broth is made by simmering fish bones and the following key ingredients and flavors: floral saffron, sweet and anise-y fennel, and bright orange zest. After simmering, the broth is blended up and strained into a poaching liquid for the fish fillets. (Don’t worry — this weeknight-friendly version starts with fish stock so you don’t need to go buy fish bones.) The recipes from both my French chef instructors and Julia Child contain just fish and no shellfish. In fact, both insist on at least six (!) types of fish.