Clean, wash and slice the mushrooms. Fry in hot fat while turning for about 5 minutes. Season with salt and pepper. Take 1/4 of the mushrooms aside. Dust the remaining mushrooms with flour.
Deglaze with white wine and stock, cook for another 5 minutes. Wash and chop the herbs, add to the stock and puree. Bring the cream to the boil briefly. Season again with salt and pepper. Warm up the remaining mushrooms in it.
Serve generously sprinkled with herbs and nasturtium flowers.