The entire process of boiling new lotus seeds and mixing with rock sugar. Photo: World wide web Following marinating, pour every one of the lotus seeds soaked in alum sugar into a considerable pan, place on the stove and Prepare dinner on small warmth.M?t h?t sen hu? có thành ph?n g?m h?t sen nguyên ch?t và ???ng kính pha tr?n theo công th?c