Wash the cod, dab dry and cut into pieces. Turn one after the other in salted flour, whisked egg and cornflakes. Peel and wash the potatoes, slice them finely and spread them out on kitchen paper to dry.
For the salad, clean and wash the cucumber and radishes and cut them into fine slices. Whip vinegar and oil. Season with salt, pepper and sugar. Mix with the cucumber and radish slices and leave to stand.
Roast the potato slices in hot frying fat until golden brown, drain. Breaded fish pieces also cook in the hot fat for 3-5 minutes. Serve with the chips and salad in portions. Serve garnished with lemon, dill and cut-out radish fish.