Add milk to the flour together with salt, butter and egg. Knead until a dough smooth and elastic. Then set aside covered to rise for 60 minutes.

• 将牛奶加到面粉里，和食盐，牛油和鸡蛋。将其揉搓至面团光滑均匀。盖上湿布发酵60分钟左右。