For the light sauce, peel and chop the onion. Mix sour cream, quark and chopped onion. Wash and chop the chives and dill. Finely puree with 2 tablespoons of crème fraiche. Stir all but 1 tablespoon into the sauce.
Season to taste with salt and pepper. Add the rest of the herb puree garnished with herbs in the middle. For the fruit sauce, mix chutney, apricot jam and remaining crème fraîche. Season with mustard and pickled peppercorns.
Peel the mango, cut from the stone, dice finely and fold in.