stir-fried shredded potatoes in sauce

Liang Liang is an authentic Shandong native, and Shandong people like to eat soy sauce. I remember when I was a child, my grandma would soak and wash the soybeans first, then add the ingredients before boiling. After cooking, they would put them in a sealed container to ferment naturally. Then in the spring of the following year, dry it again, soak a small part in water, and then slightly ferment it into fresh sauce. In spring, dip it with green onions and eat it. It's delicious. When the rest of the sun is almost dry, rub it into a ball with your hands, place it in a container, and store it in a shady place to eat for a long time. Nowadays, there are fewer and fewer people making their own sauce, and there are too many processes. After grandma passed away, my aunt had done it several times, but now she is old and doesn't do it much anymore. Fortunately, there are many types of sauces nowadays, but the taste is very different from the ones I make. This fried shredded potatoes in soy sauce was what Yangyang's mother said the other day. It's very delicious. Yangyang wants to eat it, so try it out. It's not bad!