Degrease duck breast, wash and dab dry. Fry vigorously on both sides in hot oil. Season with salt and pepper. Fry for 15-20 minutes. In the meantime clean, wash and drain the chanterelles.
Peel and chop the onion. Wash the apple, remove seeds, cut into slices or slices. Wash and chop sage. Fry chanterelles and onion for the last 5 minutes with the duck breast. Add apple, sage and cranberries.
Season with salt, pepper and lemon juice. For the puree, bring the milk to the boil, remove from the heat and stir in the puree flakes. Pour into a piping bag with star-shaped spout and squirt onto a plate. Cut the duck breast open and arrange with the remaining ingredients.