BBC Good Food Cheese Club
Read about the all-new BBC Good Food Cheese Club. Curated cheese, delivered straight to your door.
Cook the potatoes in boiling salted water for about 10 mins until tender, then drain and leave to cool a little.
Meanwhile, mix the onion, gherkins, vinegar, mustard and fromage frais together in a medium bowl. Add the potatoes, mix well, divide between two plates, then top with the fish. Great with a green salad on the side.