olive oil, water and a spoon of balsamic vinegar for about half an hour. wet with water and add salt and pepper, on low heat.
warm the pan just greased and brown the duck breast on the side opposite to the skin for a few minutes, so that the melted fat serves to flavor the other side. wet with a spoon of marinade sauce, than pick up and put it in a small baking dish, pouring the rest of the marinade sauce. seal with foil and bake at 75 degrees for half an hour.
when you pick up the meat it will be pink but not rare. cut and arrange it in 