Rub the peel of 2 oranges and tear off the zest of one orange. Peel all oranges generously with the knife so that no white peel remains on the oranges. Mix the zest with the crème fraiche until smooth. Mix 10 g basil leaves and 4 tablespoons oil with a hand blender. Then add to the cream and mix. Season to taste with salt and pepper.
Spread the rocket on plates. Arrange the mozzarella and orange slices alternately like a roof tile, lightly salt and spread the cream on top.
Drizzle with the remaining olive oil and sprinkle with anise, basil leaves and orange zest.