This is a simple recipe for some jam I made with apples I bought on sale. It takes about 1 hour and 15 minutes (15 minutes of actual work) and is about 400 calories.
I bought some Starking apples, but they didn't go over well with my family, so tried making some jam. I think they're delicious either way.
I made this with 30% as much sugar as apple. If you want to store it for a long time, I think it's better to use a larger amount of sugar, like about 50%.
Enjoy Japanese food around the world.