Luffa Clam Soup Ingredients: Luffa, Clam (washed), ginger slices Seasoning: salt, cooking wine, chicken essence (by weight). Soak the skin of Luffa thoroughly with clear water, and cut it into hob blocks for later use. (2) Pour clear water into the pot, and boil the Clam and ginger slices with cooking wine. (3) Then mix and boil the Luffa until it breaks.