1. Wash pork ribs, cut into 2cm square pieces, blanch in boiling water for 5min, remove, and wash with clear water. The onion is cut into 3.5 cm long sections. Slice ginger.

2. Put the meat into the magnetic jar, add soy sauce, rock sugar, cinnamon, onion, ginger and water (depending on the degree of immersion of the meat), cover the jar with a plate, boil it on medium heat, then move it to low heat and simmer for about 3 hours until the soup is thick and the meat is rotten.