7
In the same wok, add the remaining chili oil, tip in the Pixian bean paste and stir-fry for about 30 seconds, until the oil is red and fragrant. Add the chili powder, stock and the light soy sauce, fermented sweet rice, season to taste with salt, and return to the boil over a high flame. When the sauce is boiling vigorously, drop in the beef slices. Wait for the sauce to return to the boil and then use a pair of chopsticks to gently separate the slices. Simmer for 4 -5 minute or so, until the beef is just cooked, and then spoon it on to the waiting vegetables.