Breakfast should be nutritious enough, choose egg filling. Take the flour while resting, and in the same bowl, stir half with hot water and the other half with cold water. After the hot water part is slightly less hot, it is all together with the noodles. Then take the water with your hands and continue to knead the dough, it will absorb a lot of water. Spread oil on top and wrap in cling film. The next morning, the dough is cut into equal pieces, then rolled into a pie shape, covered with two pieces, greased with oil in the middle, and pinched all around. Brush oil, when frying, you can see the oiled part bulging in the middle. At this time, poke a hole with chopsticks or a fork, pour the beaten eggs and chopped green onion in, and it's done. It's not the same as the egg filling at the school gate when I was a child, but I have tried my best hahaha, it's still good!