For filling, combine all ingredients except water in a bowl. Gradually add in water and mix with chopsticks until all the ingredients are well-blended and smooth.

• 牛肉放入碗里，除水外，将肉馅的其它材料也一并放入，用筷子搅拌均匀。搅拌时，逐渐加入清水搅拌均匀成馅。