If you don't have sesame paste, you can also use ground sesame, but in that case, use a pestle to grind it more until it becomes close to a paste.
Pour milk into a pot and turn on the heat. Add the sugar and slowly stir with a spatula until dissolved. When it begins to boil, add the sesame paste.
Soak the gelatin in water, then add to the pot. Use a whisk to mix in until the sesame paste is well combined. Remove from the heat.
Set the pot into a bowl of ice water and stir slowly with a spatula while it cools. Transfer to a container and let cool in the refrigerator. If the sesame sinks to the bottom, you can achieve a look like in the picture.
You can also eat it out of the container.
Story Behind this Recipe
I came up with a way to use sesame seeds.
Increase the amount of sesame paste and sugar to taste.