Just mix the ingredients and switch the rice cooker on! It's easy to make!
I happened to know that I could make steamed sweet potato in a rice cooker, so I used that method to make daigaku imo.
When you stir the sweet potatoes at the end, stir gently from the bottom with a ladle or a wooden spatula to combine with the syrup as if you are turning them upside down.
Enjoy Japanese food around the world.