Heat up a wok or skillet with enough oil over the medium heat. Add in the marinated beef and blanch until cooked. Dish off and drain.

• 锅内留底油，放入干辣椒和花椒翻炒出香味，牛肉片回锅炒匀，加入调味翻炒均匀至干。装盘后撒上芝麻即可。