2 tbs. butter 2 tbs. olive oil 2 onions, chopped 2 leeks, washed and sliced 4 celery stalks, sliced 2 cups fresh or canned skinned chestnuts, chopped 6 slices serrano ham, chopped 3 cups whole wheat bread, chopped in 1 inch cubes, borders removed and leaving bread out one day 1 ½ cups prunes, diced ½ cup fresh parsley, chopped 1 tsp thyme 1 cup chicken or turkey stock Salt and pepper to taste