Flower Purple Sweet Potato Bread

Overview

I like flower-like bread. Its various shapes make people salivate and give bread a whole new life.

Except for salt, yeast, butter and accessories, mix all the ingredients and knead until there is no dry powder. Cover with plastic wrap and put it in the refrigerator to refrigerate for one night. Take it out to warm up the next day, add yeast, knead until dissolved, then add salt and knead out a rough film.
Add butter and knead until fully expanded (film emerges).
Leave to ferment in a warm place until doubled in size.
Divide the dough into 8 portions, shape into a round shape, flatten, add fillings, and let rise in a warm place until doubled in size.
After fermentation, brush the surface with egg wash, preheat the oven at 140 degrees, bake at 130 degrees for 30 minutes (depending on your oven temperature), cover with tin foil when the color is satisfied.
Brush with butter when taken out of the oven, then seal and store while still hot.
Finished product picture.