Bitter Melon Soup

FILLING 4 bitter melons 5-6″ long or 3 bitter melons 8″ long 1 lb ground pork 1 medium onion ~2/3 cup chopped 1/2 cup hydrated wood ear mushrooms chopped  1 pack of dried mung bean noodles chopped. ~1 cup hydrated.  2 teaspoon sugar 1 teaspoon salt 1 teaspoon pepper 1/2 tablespoon fish sauce optional BROTH 3 cups broth 4.5 cups water sugar and salt for seasoning the...