First, break the tremella with warm water, and soak the lotus seeds soft and wash them. When ready, put the ingredients into the electric pressure cooker together. When cooking, the pressure cooker does not exhaust or evaporate. Just drain the water according to your thinness, and then turn to the function file of porridge or soup. It depends on what brand of pressure cooker you buy. Some need to adjust the pressure, and some don't. Medium or high pressure can be used if necessary. In short, if you want to cook badly, you can adjust the high pressure, otherwise you can adjust the medium pressure. ) after the completion, it is basically ok. Finally, after the pressure cooker automatically releases pressure, open the lid and put the rock sugar in, and then cover it for a while. It is a good choice to cook this soup in an electric pressure cooker because it takes a long time to cook. If you use an ordinary pot, the water will evaporate a lot quickly, so the soup will taste worse.