BBC Good Food Cheese Club
Read about the all-new BBC Good Food Cheese Club. Curated cheese, delivered straight to your door.
Mix the crème fraîche, harissa and lemon juice, then season to taste. In a large bowl, toss together the potatoes, tomatoes and onion, then stir in the dressing to coat. Scatter with the flaked mackerel and rocket. Stir together before serving.