No need for heavy cream. The milk is enough to make rich and creamy mashed potatoes.It's great as a side dish.
I don't really have a story, but I just wanted to avoid using heavy cream, a food processor or electric mixer that are such a hassle to clean up, and came up with this recipe lol.
You can add plenty of milk, since it will evaporate when heated.By adding a lot of milk, the milky taste will increase! It'll become a mild tasting mashed potatoes.
Enjoy Japanese food around the world.