Stir-fry the red onion with lard first. The red onion must be "shaved" and ground with a kitchen knife one by one, so that it is crispy and not greasy when fried. Then pour in the fried flour and stir, let it cool, shake it with a sieve, and add flour while sieving until it is fine. The fragrant noodle tea is a popular local snack in Taiwan Province in 1960s, which is not only a meal to relieve hunger, but also a clever snack. The materials of noodle tea include high-gluten flour, lard, oil onion, sugar, salt, sesame, etc. The production method is that after the lard is heated, the flour is put into the pot and fried, and then various seasonings are added, usually 15 kilograms of flour is fried at a time. It takes about two and a half hours to stir-fry noodles and tea with a shovel to avoid burning. Because the materials made by each family are different, the fragrance of the tea is actually different. In the past, lard was added to the noodle tea when the flour was fried, which was definitely an authentic ancient taste; In addition, some people use black sesame seeds instead of white sesame seeds, or grind peanuts into powder and stir-fry them with sesame seeds, which tastes different. It tastes very fragrant.