sweet potato powder. In rural areas, people like to break the washing powder with sweet potatoes. These precipitated powders, which are filtered out of water and dried in the sun, become potato powder! Also called fennel powder! Usually, they put a few spoonfuls of these powder in a bowl, add some sugar, add some cold water to make a white paste, then rush in the boiling hot water, stir it quickly with chopsticks, and the color will turn black. Then, if it can't be stirred, look, it becomes a jelly-like thing with transparent primary colors! Maybe this is the prototype of jelly, but no pigment is added to adjust the color ... spoon it up and put it into your mouth, sweet and smooth, and it feels like jelly that comes later! When I was a child, my grandmother often brewed this sweet potato powder for me to eat ... Later, after I got married, my relatives gave me a pack of this fennel powder. At that time, I scooped the powder in a bowl, added water, mixed it, and suddenly had a whim. I knocked two eggs in, added salt, didn't put sugar, and cut some chopped green onion into it. After stirring evenly, I put rapeseed oil into the pot and burned it. Put it on a plate, golden in color, green in chopped green, fragrant, fresh, slippery and a little salty, and put it on the dining table, and the family treated it as a dish and ate it all ...