This video introduces a recipe for fluffy sweet potato that you can easily make at home, perfect for the autumn season when appetites are at their peak. First, wash the sweet potatoes and bake them slowly in the oven, then remove the flesh while it is still warm. Add unsalted butter, heavy cream, and egg yolk to the removed sweet potato flesh and mix well. Heat the mixture in a pot, reducing the moisture until it becomes a smooth dough. Divide the dough into 40g portions and shape them. Brush them twice with an egg wash made by mixing egg yolk and mirin, then bake in a preheated oven until golden brown. These moist and fluffy sweet potatoes are perfect for a home café experience or as a gift.