Remove the skin from the apple, cut into quarters, remove the stem, blossom and core. Peel the egg. Remove the horseradish from the peel and finely dice. Mix everything with the juice of one lemon, the oil and the whipped cream in a hand mixer. 2.
Season the cream with salt and sugar, spread it on the salmon and roll it up. 3.
Arrange on lettuce leaves and garnish with lemon slices and dill.