Prepare all the ingredients.
Peel a lemon...
...cut it in slices. Keep aside for decoration.
the white bread. Spread butter on each slice with a metal spatula.
Put the salmon slices on top.
the sides of each slice in order to remove the whole crust. Cut each slice in individual servings.
Decorate with cream butter in a ...
...a spring of chervil or dill and a small piece of peeled lemon.
Keep in the fridge.