Livornaise is a sauce. But it is also a method of cooking. Fish is cooked in the sauce to keep it nice and moist. So what makes up this sauce that is so utilitarian? Olive oil, egg yolks and anchovy paste.
Livornaise as a cooking method is made with tomatoes, garlic and olive oil. All very Mediterranean ingredients.
The sauce is quite similar to a mayonnaise but with the anchovy paste added for kick.
It’s called livornaise because it is from Livorno region of Italy.
Image of livornaise cooking method, not sauce.