· Pre-heat the oven to 210° (gas mark 7).
· Cut the salmon into small pieces.
· Cut the leek (white part only) into thin slices and simmer them in butter.
· Mix the eggs (do not beat too hard) in a mixing bowl.
· Add the cream and the mustard and beat gently.
· Add half of the chopped chives.
· Season with salt, pepper and grated nutmeg.
· Lay out the shortcrust pastry in a pie dish and prick it with a fork.
· Arrange a thin layer of the sliced leaks on the pastry.
· Then add the salmon.
· Pour in the contents of the mixing bowl until the pie dish is full.
· Sprinkle with the remaining chives.
· Put in the oven for 20 to 30 minutes.
· The quiche can be served hot, warm or cold.