Go to the store or supermarket to buy agar, which is something extracted from marine plants. Its appearance is gray and translucent, like vermicelli.

Buy and cut into pieces, add water to the pot to boil, and stir patiently until it becomes a pot of juice. Then you can add a proper amount of milk powder, sugar and a few drops of edible essence. It doesn't matter if these are put too much, but they are too sweet, haha.

All right, stir well and cook it a little. Pour it out and put it in your container. As long as the container is placed in a cool place, the agar will gradually condense into a jelly-like object. You can cut it into pieces with a knife at will. This thing is more expensive than jelly, and of course it is much more nutritious. The manufacturer does not give it. It is absolutely safe and hygienic. This agar is used to cultivate microorganisms biologically, so you don't have to worry about food safety. It has no side effects and is much better than the chemical additives in jelly.

Well, if you are interested in it in the future, you can also try to put some juice in it. Used to put milk powder. Ha ha.