First make your quick salt cod by placing half of the salt on a large plate, and placing the fish fillets on top, pushing them into the salt beneath. Top with the remaining salt and push this into the surface of the fish.
Leave for at least 10 minutes to draw out moisture and toughen the flesh. Rinse the fish, then place in a frying pan and cover with milk. Bring to the boil and turn off, leaving for several minutes until the fish is cooked through. Pour through a colander and rinse, using your hands to break the fish into large flakes. Set aside to dry out.
In a large bowl mix the mashed potato with the herbs, eggs, spring onion, chilli flakes (if using), lime zest, garlic clove and flour. Mix well and season with pepper (avoid using salt at this stage as the cod will be salty). Add the cod and gently mix through. Using two table spoons form into loose quenelles, or rough balls, and place on a greased baking tray. Refrigerate for half an hour.
To cook, heat ½tbsp olive oil in a large frying pan and fry for two minutes a side until dark brown and crispy (that’s three sides if using quenelle shape). Mix all salad ingredients and serve alongside the fritters.