Add proper amount of yeast powder to flour, add white sugar and warm water, and stir into smooth dough for fermentation. Then take a container, add a small amount of flour salt and spiced powder, pour in an appropriate amount of hot oil, stir to make pastry, take out the dough, roll it into a large rectangular dough, spread the pastry on it, sprinkle with salt, sprinkle with chopped green onion, roll it up from one end, steam it, and then use a knife. Brush with honey water and sprinkle with sesame seeds, then bake in a baking tray for 15 minutes, and the delicious onion-flavored rolls at 170 degrees are ready.