Preheat kitchen stove to 220 °C.
Clean leeks carefully, cut away root end, cut into matchstick-sized strips. Blanch in salted water for 3 to 4 minutes, cool and rinse. Dry with kitchen roll. Cut smoked salmon (broetil salmon) into strips. Mix with the leek and the juice of one lemon. Season with fresh pepper.
Roll out short pastry thinly, line baking sheet. Prick bottom with a fork. Spread leek-salmon mixture evenly on top.
Mix eggs, cream, milk, salt and nutmeg. Spread evenly over leek-salmon mixture. Bake in the oven heated to 220 °C on the lowest shelf for 30 minutes.