2. First cut tofu, duck blood, leek, onion and ginger, then boil water and put salt in the pot. After the water is boiled, add tofu and cook for 3 minutes.
3. Then cook the duck blood for three minutes, put oil in a hot pot, add onion and ginger until fragrant, add tofu, duck blood, cooking wine and soy sauce, and stir well.
4. Finally, add water, stir-fry the pickled leek, add monosodium glutamate and wet starch, and stir evenly.