In the meantime, let the salmon simmer in a pan with boiling water for about 8 minutes. Beat the eggs in a bowl, add coconut milk and reduced mussel stock and mix. Season with salt and pepper
Take the puff pastry out of the refrigerator 5-10 minutes before use. Unroll puff pastry, remove baking paper. Sprinkle work surface with fennel seeds and flour. Place puff pastry on top and roll gently over it with the pastry roller so that the seeds press into the pastry. Line a tart mould (20 x 30 cm) with lift-off base with it, pressing the edge down. Cut off overhanging dough
Spread the salmon and mussel meat on the bottom of the tart. Pour the coconut milk mixture over it. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 30-35 minutes until the filling is firm