Wash rocket, dry. Pluck the thick stalks and roughly chop the rocket.
Put the herb vinegar, oil, sweet mustard, mineral water and rocket in a tall mixing bowl and puree with a hand blender. Season with salt and pepper.
Cook the gnocchi in salted water according to the instructions on the packet, then drain. Then rinse with cold water and drain on a colander. Then put in a bowl and mix with the salad sauce. Rinse the cherry tomatoes and pat dry. Rinse and drain the mozzarella - cut large mozzarella balls into smaller cubes.
Now mix all the prepared ingredients together in the bowl.
Tip: Always prepare the salad fresh, if it stands for longer than a day, the gnocchi will be hard and floury.