Preparation materials: 520g of fresh pig blood, appropriate amount of purified water, and a little salt.

1. First, pour water and salt into the basin and mix well, as shown in the picture below.

2. Put the pig blood into a basin, wait patiently for it to solidify, and then cut it into pieces.

3. Boil the salt water, add the cut pig blood, and cook over low heat.

4. After cooking, take out the pig blood and soak it in water.

5. Take it out after 3 hours and cut it into small pieces with a knife. The pig blood clots are ready.