Chef Keller's famed Burger Bar restaurant serves up gallons of mayonnaise every day, all made from scratch because it allows them to use only the best ingredients. After demonstrating the super-easy technique of homemade mayonnaise, Chef Keller shows what to do with it by making zucchini fries and the most famous fish stew in the world. Homemade Mayonnaise, Aioli, Rouille; Zucchini Fries; Bouillabaisse.