Bring the soda and jam to room temperature. Cut the marshmallows into small pieces if they are large (about 1g per piece).
Sprinkle in 5 g of gelatin into 3 tablespoons water (not listed), and microwave for 30 seconds (500~600W) to dissolve.
Add 200 ml of soda to Step 2 and mix well.
Pour into individual containers.
Add the marshmallows proportionately.
Use a tray etc. to place the glasses at an angle, and chill in the fridge for more than 30 minutes to solidify.
Sprinkle 3 g of powdered gelatin into 2 tablespoons water (not listed), and microwave for 20 seconds to dissolve.
Add 150 ml of soda and jam to Step 7, and mix well.
Pour the mixture into the containers taken out of the fridge, and let chill in the fridge for more than an hour to solidify.
Garnish with mint and fruit to your preference (both unlisted).
Story Behind this Recipe
I composed a dessert recipe using soda that's look and be refreshing for my children.
In Steps 3 and 8, please thoroughly mix the cider liquid with an egg beater so that bubbles form. I used blueberry jam this time, but please feel free to make this with your favorite jam. I recommend using a vividly colored jam.