Huang Han also instructed a group of women, led by Li Sanniang and Gu Zhen, to also learn how to fry potato chips.

This technique is not worth mentioning, after listening to Huang Han talk about how to make it, they basically mastered the trick after trying to blow it up three or five times.

Potatoes can be quickly sliced with a planer similar to that used in carpentry.

After frying in a pan and making puff pastry, take out the dried vegetable oil, and then sprinkle with a combination of cumin powder, dogwood powder, pepper, pepper powder, etc., which tastes great.

Because the raw materials are all natural foods, they are even more delicious than the potato chips of later generations.

It will take a month and a half before the potatoes and sweet potatoes are harvested on a large scale, and the women's roasted sweet potatoes and potato chips will be sold on a large scale at that time, which is now in the experimental stage.

Huang Han took Li Sanniang and Gu Zhen and more than forty women to Yongping Mansion City to try their sales.

Now the population of Fucheng has recovered a lot, with more than 10,000 households approaching 100,000 people.

Twenty roasted sweet potato trucks started doing business in the more prosperous places on the streets of Yongping City, and the sales price of roasted sweet potatoes was four cents a catty.

As expected, there was an endless stream of ordinary people who came to buy a pound to try it, and the two women in each car were very busy, and they actually sold an average of 300 catties at the end of the day.

This means that their turnover has reached 1,200 yuan, that is, the official price of 122 yuan of silver, and they can get 120 yuan of silver, if they can sell so well every day, won't they be able to earn 128 yuan of silver a month?

Whether there is such a good business every day Huang Han can't be sure, but it is certain that the people can accept and afford to spend four yuan a pound of roasted sweet potatoes.

Because food is very expensive, it directly leads to a sharp increase in the price of cooking cakes and multigrain cakes.

Li Sanniang's current price of grain on the day of selling roasted sweet potatoes is not low, the selling price of a two-tael cookcake has been as high as two cents, you must know that one pound is sixteen taels in this era, and the price of one pound of white flour cookcakes is sixteen wen.

The price of a pound of baked sweet potatoes is only a quarter of that of white flour cakes, this thing is sweet and delicious, and it is more anti-hunger to eat.

People with better living conditions will also buy some for their children as snacks, so the sales prospects of roasted sweet potatoes should be bright.

That night, Huang Han went to visit the prospective old man, and at this time, the old lady of the Zheng family had already gone to the house in the capital with her daughter Xiu'e, and only Zheng Guochang and an old servant and two long-term servants were still in the original palace of the envoy.

With the officials at all levels of Yongping Mansion in place, if nothing else, Zheng Guochang will leave Yongping Mansion and return to Beijing not long after, and his official office is actually in the capital.

Zheng Guochang values his prospective son-in-law very much, because Huang Han surprised him again, he originally thought that his prospective son-in-law was a martial artist, but who knew that he was blind.

Huang Han can not only recite poems, sing songs, but also read esoteric books such as "Principles of Geometry", these are not enough, the key is that the prospective son-in-law has superhuman ability to manage civil affairs.

Hundreds of thousands of homeless people starved to death under the care of Huang Han, not only that, but they also lived nourishingly one by one, and even Xu Guangqi, a Qingliu minister, couldn't praise this young man who could write and martial arts to the sky.

Seeing that his son-in-law came to visit, Zheng Guochang happily asked the old servant to arrange a few side dishes to drink with him.

Huang Han also brought two foods, one is baked potato chips that can be used as an accompaniment to alcohol, and the other is baked sweet potatoes that can be used as a staple food.

Zheng Guochang had never eaten these two things, and after tasting a few bites, he exclaimed: "Virtuous son-in-law, are these two delicacies that the old man eats made of sweet potatoes and potatoes?" ”

"Of course it is! There are many ways to make sweet potatoes and potatoes, and there will be many new tricks in the future. ”

"It's so good, the new crop yield is high and it's so delicious, Master Xu has made great contributions, and he is really a model for my generation."

"Yes, the teacher is dedicated to the people and devotes himself to the study of agriculture, and I, a disciple, will always make the results of his old man's research widely known to the world, so as to be worthy of the teacher's decades of hard work."

"From the old man's point of view, it is not far off for Lord Xu to have your apprentice, and his new crops will be recognized by the world!"

Weng Son-in-law was drinking and chatting, Zheng Guochang was quite interested in the cultivation of new crops, and he was also curious about what Huang Han would do next after buying a large number of potatoes and sweet potatoes?

Huang Han described the benefits and multiple uses of sweet potatoes and potatoes in their original form, and then explained the sales plan and plate, and asked Zheng Guochang to make it clear that the two novelty foods of roasted sweet potatoes and potato chips were the original of the "Red Flag Army".

In the name of the political envoy of the Northern Zhili Cheng Declaration, it is solemnly stated that the recipe and production method have been filed in Yongping Prefecture, and the Stealing Scholars will be punished for the crime of stealing military property.

This method is actually very good, the original formula and production method do not belong to the individual, but to the collective of the "Red Flag Army".

Zheng Guochang wanted to make it convenient for the "Red Flag Army" to shield Huang Han, and with the reason of raising military salaries, he could open the door to Huang Han in a grand manner and not be criticized by the officials.

Huang Han made it clear that the main purpose of this move was to help the common people sell the sweet potatoes and potatoes they had grown, and the secondary purpose was to raise military salaries for the "Red Banner Army." The reason why no one was allowed to imitate it was to let the families of the "Red Banner Army" make exclusive deals.

In this era, there is no intellectual property protection, what can people do if they follow suit?

Zheng Guochang was old and sophisticated, and said with a smile: "Virtuous son-in-law, your idea is good, but even if the old man in the name of the political secretary in Beizhili makes it clear that these two novel foods are the exclusive secret skills of the 'Red Flag Army'?" There will be no official who will be willing to meddle with such idle matters, it will only be a dead letter. ”

Huang Han said with a smile: "Uncle Yue, what the son-in-law wants is justified, where do you really want the third class of officials to arrest people on the street?" The 'Red Flag Army' doesn't bully people, and it won't be the turn to be bullied! ”

Zheng Guochang was speechless for a while, and he realized that Huang Han came to him to write in order to have laws to follow and rules to follow, and he was not prepared to rely on the power of the government to enforce the law, and his 'Red Flag Army' would do it himself.

Zheng Guochang said: "It's no problem to give you a text, but you must also stop in moderation, and you must not make a fuss for the sake of roasted sweet potatoes." ”

Huang Han smiled: "How can it! The son-in-law had already figured out how to deal with the people who stole the technique of roasting sweet potatoes, and the 'Red Flag Army' would arrest them and bring them to justice, confiscate their equipment, and would not kill these people or beat them, but sent them to the brick kiln for labor reform for half a year. ”

Huang Han's method is really good, confiscating the competitor's stove and car, and letting these people go to the brick kiln for free to work for half a year, and the labor paid by these people is always worth four or five taels of silver, which is equivalent to paying a fine.