Mix the egg, 1 pinch of salt, flour and milk to a smooth dough. Let the dough swell for about 30 minutes. Wash the asparagus and cut off the woody ends. Cook in plenty of boiling salted water with a pinch of sugar for about 10 minutes. Wash the herbs, dab dry and pluck from the stalks. Put something aside for garnishing.
Heat the oil in portions in a small coated pan. Add 1/4 of the dough and place some parsley leaves and dill flags on the still moist mixture. Fry 4 pancakes one after the other until golden brown and keep warm. Put one pancake each on a plate, fill with a slice of salmon and roll into a bag. Serve with asparagus. Serve garnished with parsley, dill and lemon slices as desired