超好吃的紫薯麥糕粿，無需揉麵，非常的鬆軟香甜，比饅頭還要簡單好吃！Purple Potato Steamed Chinese sponge cake。

主要食材：紫薯150克，清水300克，白糖80克，麵粉220克，糯米粉80克，耐高糖酵母粉3克，黃油20克。
Main ingredients: 150g purple potatoes, 300g clean water, 80g white sugar, 220g flour, 80g glutinous rice flour, 3g high sugar resistant yeast powder, 20g butter.