You don't have to rehydrate the lentils in water beforehand. It is a quick braised dish that's accented with tart white wine vinegar.
I wanted to savor lentils, so I made a simple braised dish. The white wine vinegar adds an accent to the dish.
Step 1: you could just rise the lentils if you're strapped for time. Make sure you drain the impurities well.Step 2: use hot water, and not cold.Step 5: skim off the scum diligently.
Enjoy Japanese food around the world.