Sweet potato cake，紅薯別再蒸著吃了，加入一個雞蛋，做成發糕，鬆軟香甜，簡單又美味！

紅薯別再蒸著吃了，加入一個雞蛋，做成發糕，鬆軟香甜，簡單又美味！
主要食材：紅薯300克，雞蛋一個，牛奶200克，麵粉250克，白糖40克，酵母粉3克，食用油20克。
Stop steaming sweet potatoes. Add an egg to make a cake. It's soft, sweet, simple and delicious!
Main ingredients: 300g sweet potato, one egg, 200g milk, 250g flour, 40g sugar, 3G yeast powder and 20g edible oil.