large duck • duck blood (optional) • ginger, salt, white wine • Seasonings: chili powder, fresh chili, chicken bouillon powder, sugar, black pepper, fish sauce • Hue-style fermented shrimp paste (mix the paste with a bowl of cold water and stir to dissolve) • cooking oil • shallots (or small onions), a few purple onions • Herbs: green onions, Vietnamese coriander (rau răm) • Noodles: 2 cups tapioca starch (about 250 grams), salt, boiling water