Wash the chives and cut into small rolls. Mix and season yoghurt, sour cream and chives, except for some garnish
Clean mushrooms, rub with kitchen paper. Grate cheese, mix with breadcrumbs. Season egg, whisk. Turn the mushrooms one after the other in the flour, egg and breadcrumbs mixture
Fry the mushrooms in hot oil from both sides until golden brown. Drain on kitchen paper. Arrange oyster mushrooms, possibly ham and dip. Sprinkle with the remaining chives. Serve with green salad