Write my Chinese dream and the snack composition of Mianhu in 300 words. Snacks should have a history!

Speaking of this snack, there is still a period of history. According to legend, a long time ago, there was a dentist named Shi in Mianhu, and his two sons were in the peanut business. Once, the two brothers bought seventeen loads of peanuts and soaked them in the pool together. Unexpectedly, it rained heavily for more than 20 days in a row, and the shells of seventeen loads of peanuts were all black and almost useless. Teacher Shi suddenly thought of a way to peel off the shells of peanuts, wash the beans, then mix some edible drugs and fry them. Although the peanut film turned black after frying, the peanut kernel was whiter, looser and more fragrant than before, so Mr. Shi named it "black film bean kernel"

"Black bean kernel" (a kind of cooked peanut with black skin, which is called "black bean kernel" in our local dialect) is a specialty of our hometown Mianhu, which is characterized by looseness, fragrance and crispness. Why is its membrane black? This has to start from more than 80 years ago.

According to legend, more than 80 years ago, there was a doctor named Shi Haoyu in Mianhu. Both his sons are in the peanut business. Peanut processing was easy at that time. Just put peanuts in a small pond in the yard for a few days, and then take them out to dry without opening the shell. On one occasion, Shi Haoyu's two sons put several loads of peanuts in the pool to soak. Who knows, it has been raining for more than 20 days in a row, and the peanuts are going rotten. Seeing that more than twenty loads of peanuts were going to be destroyed, Shi Haoyu used his quick wits to put alum (a medicine) into the water, then opened the peanut shell and soaked it for a few days. A few days later, Shi Haoyu dried the shelled peanuts and found that the skin of the peanuts turned black. So out of curiosity, he ate peanuts. "It's delicious!" Shi Haoyu said loudly. Shi Haoyu immediately asked his two sons to sell new peanuts. As soon as we arrived at the market, everyone tasted it and it tasted better than the original. Everyone is rushing to buy it. In less than half a day, peanuts were sold out. Later, Shi Haoyu called this peanut "black-chip bean kernel". This legend has been passed down to this day.

The traditional production method is to shell the purchased high-quality peanuts, select large and high-quality beans (peanut kernels), dissolve alum in a bull's head tripod (pig iron) filled with appropriate amount of water, add salt to boil according to the ratio of about 50 kg of beans to 2.5 kg of salt, then pour the beans into the tripod and stir them evenly until the membrane of the beans changes color, and then take them out to dry. Stir-fry the fine sand with a tripod, pour in the dried beans and stir-fry until cooked. After the production is completed, the bean kernel film is black and bright, and the color is charming. Gently rubbing off the film with two fingers will reveal pale yellow, loose and crispy nuts, which is mouth watering.

Find the first paragraph by yourself. My own writing is not very good, and I was deducted by the teacher.