Hua Juan is the most common variety of traditional pasta, which is made of hair flour. How to make dough is a headache for many people. Here are two methods of making dough, yeast method and self-raising flour method. From the point of view of nutrition, yeast method is better, because fermented yeast is one of the main food sources of vitamin B needed by human body. Vitamin B can regulate metabolism, maintain the health of skin and muscles, and improve the functions of immune system and nervous system. In terms of fermentation speed and operation difficulty, self-raising flour is more convenient and faster than yeast method. These two methods have their own advantages. As long as you master the skills, you can easily make pasta. The paper has beautiful appearance and varied tastes, such as sweet sesame paste roll and salty onion oil roll, which we are very familiar with, and are deeply loved by everyone. Here, taking the onion oil flower roll as an example, the making method of flower roll is introduced. Let's see how the onion oil roll is made. Ingredients: fermented dough, onion, cooking oil. Practice: 1. Making fermented dough: Method 1: Take 250g of self-raising flour from the baking method, slowly add warm water, knead it into smooth dough, cover it with plastic wrap, and put it in a warm and humid place for 40 minutes to make flower rolls. Method 2: Prepare 250g flour, 5g yeast and 120ml warm water by yeast method. Warm water is not too hot. Dissolve yeast in warm water and let it stand for 5 minutes. Slowly pour the yeast water into the flour, knead it into smooth dough, cover it with plastic wrap and put it in a warm and humid place for proofing until the dough is fermented for about 2-2.5 times. The way to judge whether the fermentation is complete is to dip a finger in flour and poke a hole in the dough, so that the dough will not shrink or sink after pulling out the finger, that is, the fermentation is completed. Note: In summer, dough can be fermented at room temperature. If the indoor temperature is low, you can put a cup of boiling water in the microwave or oven, put the dough in it, or put the dough in a steamer with hot water. You can also put dough on the heater in winter. In short, it is necessary to create a suitable humidity and temperature environment for dough to facilitate fermentation. 2. Take out the fermented dough, put it on the panel, knead it to exhaust the gas inside the dough, and then roll it into rectangular pancakes with a rolling pin; 3. Spread the cooking oil evenly on the bread, sprinkle with chopped green onion and appropriate amount of salt. Roll the bread from one end, roll it into a long roll, and divide it into small rolls with a knife; 4. Pinch the dough roll with both hands, with the mouth of the dough roll facing outwards, flatten and elongate, keep the left hand still, twist the right hand for two turns, and then overlap and pinch the joints at both ends. In this way, a flower roll is ready; 5. Like steamed buns and steamed buns, the rolls should be placed for 10 minutes before fermentation. Don't steam them right away; 6. Put a wet cloth on the steamer and put it in the flower roll, paying attention to leaving a gap between them. Put cold water on the pot, steam for 10 minute after charging, and turn off the fire. Don't open the lid immediately after turning off the fire. Let it stand for a few minutes before opening the lid and taking out the flower roll.