Salmon coated in a lingonberry-Dijon-yogurt sauce that caramelises lightly as it cooks, flaked over loose, craggy potato rösti and finished with quick-pickled cucumber, radish and more of the same sauce spooned over cold. Squeeze the grated potato properly dry — that one step is the difference between crisp strands and a soft pancake. Works in an air fryer or a conventional oven.