1) Toast thin bread slices and butter them.
2) On a large serving tray, place the Beluga Caviar at its centre.
3) Serve the egg yolks, egg whites, onion and lemon wedges in 4 small bowls.
4) Arrange the bowls around the serving tray.
5) Serve Caviar With Classic Garniture with toasted, buttered bread on the side.