I haven't tried staying up all night. It's been there for hours, and it's still cold and soft. That is, add the cooked noodles, the weight of glutinous rice flour is 3: 1, and the cooked noodles are 1. First, make noodles into balls with boiling water. Then make glutinous rice balls as usual, put them together and do the next step, but I tried this method, steamed and deformed. Steam the glutinous rice paste before cooking.