Put 300 grams of milk and 30 grams of sugar in a pot and simmer gently over low heat. Rather than boiling it, it's heating it to melt sugar. Leave at room temperature for a while to allow sufficient cooling.

To remove the wax, rub the lemon with soda and soak it in water for about 20 minutes before washing it. Or you can rub it with salt.

Grind the well-washed lemon on a grater and extract only the yellow skin. The white part inside the shell tastes bitter, so just scratch the yellow part.

After raking the lemon peel off, place it on the floor and roll it twice with your hands. (It's juicy) Extract the juice of about 1/2 lemons (I used 4.5 spoon for rice spoon)

The preparation process is over. Heat the milk and mix the lemon juice, lemon peel, and oligosaccharide in the melted sugar saucepan

Place in a freezer container and freeze once an hour, scratching with a fork about four times. Every house has a different environment, so take it as an example that it's once an hour. Scratch the bottom and edges of the container when it is slightly frozen. That's it.