"Hot and sour powder" is one of the traditional snacks widely circulated between urban and rural areas in Sichuan, and it has long been loved by people because of its low price and good quality. "Hot and sour powder" is mainly made of sweet potato powder. There are two kinds of hot and sour powder: one is gouache, which is made of sweet potato starch; The other is "dry powder", that is, dry powder strips processed into vermicelli. Because the hot and sour powder made of dry powder strips is relatively simple and convenient, dry powder is mostly used all over the country, and the production operation of "gouache" is relatively complicated. The production process of "gouache" is introduced below.

Raw materials: 5000 grams of sweet potato starch, 35-40 grams of alum, cooked paste 125- 130 grams.

Note: The cooked sweet potato starch is first dispersed with clear water, then washed with boiling water and stirred into a thin paste, commonly known as "cooked sweet potato starch".

Making:

1. Grind alum into fine powder, add100g water and mix well to make alum water.

2. Pour the cooked paste into a basin, add sweet potato starch, 2000g of clear water and alum water, and knead into powder balls with moderate hardness for later use.

3. Insert a large aluminum spoon into a hole the size of a soybean, put the dough into the spoon, pat it with the palm of your hand to make it leak into a boiling pot and cook it, then take it out and cool it in cold water to form gouache.

The preparation and pouring type of "hot and sour powder" seasoning;

Hot and sour powder is made like noodles. The main sour foods are "Feitiao", "bean jelly" and "ribs", among which "Feitiao" is the most famous. "Pork intestines" can be divided into "hot and sour pork intestines powder" and "original soup pork intestines powder", that is, hot and sour taste and fresh and salty taste. The seasoning is mainly composed of pepper, red pepper, chopped green onion, soy sauce, sprouts, celery, vinegar, coriander, big head sprouts (a vegetable in Sichuan), crisp soybeans and monosodium glutamate. Sour and hot noodle soup is a thick white original soup made from fat sausage, pig's ear and other ships.

The specific operation is: put vinegar, red pepper, soy sauce, monosodium glutamate and bean sprouts into a soup bowl, inject the original soup, scald the powder in the pot, pick it into the bowl, and sprinkle with celery, coriander, big head buds and crisp soybeans.