Lanrou xiqin is a traditional dish originating from Sichuan. Although there are many variations, the dish is usually made with a combination of celery, doubanjiang (chili bean paste), ground pork, oil, ginger, soy sauce, Chinkiang vinegar, Sichuan pepper, and chili oil.
Ground pork is stir-fried in oil over high heat, and it's then mixed with doubanjiang. The mixture is stir-fried until the oil is red and aromatic. The ginger, finely chopped celery, soy sauce, vinegar, Sichuan pepper, and chili oil are added in the order shown.