For the salmon pancakes, whisk together flour, egg, milk, mineral water, salt, pepper and nutmeg to form a pancake batter.
Melt butter in a pan and fry the pancakes in batches on both sides. The batter should yield eight pancakes.
Top pancakes with salmon. Mix crème fraîche with crème fraîche and place a mound in the center of each pancake.
Chop and sprinkle dill on top and serve the salmon pancakes.