No need to warm the oil. This is easy, quick to make, and convenient to have stocked.
Coming up with this quick and easy way to make ra-yu took 2 months.Since sesame oil is pretty high calorie, anyone on a diet better be careful not to eat too much.
If you have fried onion or garlic, just mix it in and it'll be done right away. It also tastes good with sakura shrimp.
Enjoy Japanese food around the world.