Cooking with leftovers is not only sustainable, but also a creative way to conjure up delicious dishes. This easy recipe turns cooked fish into deliciously juicy fish cakes while creating a whole new dish from leftovers.

Fish cakes are a must on the coast. They are omnipresent: whether pure with potato salad or in a fish sandwich. And they have always been popular for using up leftovers. No matter what the name of the good old fishcake is in the world – whether croquetas, fish cake or gateau au poisson – I think this recipe is the best thing to make with leftovers.

You can use any fish leftovers for these fish cakes – whether grilled, fried, steamed or from the oven: whether cod, salmon or redfish, whether coalfish, sea bream or haddock… The finer the fish, the finer the meatball.

A fresh cucumber salad and boiled potatoes go well with this, but the fish cake also cuts a fine figure as a fish roll with tartar sauce, lettuce, tomato and onion.