Then boil the sugar, or have ready-made cola syrup, and pour it into the pudding container, as long as the bottom is covered with a layer.

Then the egg liquid can be set and solidified.

If you don't have an oven, soak gelatine powder or gelatin and add it to the egg mixture to solidify. If you really don't have it, just buy marshmallows (bags, soft ones, not the ones that are particularly big on the roadside). I usually buy vanilla, which has the same effect as gelatin powder or gelatin after melting.

Finally, the mixed liquid is poured into a container filled with caramel liquid, and then waiting for molding, which is simple and convenient.