I use a shop-bought curry roux with medium-spiciness. You can taste sweetness and rich flavour in the spicy curry sauce. In this photo, you can see the thick curry sauce as if it was left overnight. Well-fried onion is the key to this dish.
I really think the fried onion is very tasty.
I realised that the meat can be really tender if you cook it very slowly. You must know it already, though.This is my perfect recipe of curry!!
Enjoy Japanese food around the world.