Japanese curry roux is a pre-made blend of spices and thickeners, forming the base for Japanese-style curry, a beloved dish in Japan. This roux typically combines ingredients like flour, oils, and a variety of spices including turmeric, coriander, and cumin, which give the curry its characteristic flavor and rich, thick texture.
Chefs use this convenient roux by dissolving it into a stew of meat, vegetables, and liquid, creating a hearty, savory, and slightly sweet curry that's often served with rice or noodles, simplifying the process of making this complex and flavorful dish.