curry mixes like S&B Golden Curry save the day. Plus, there's just 5 key ingredients to keep things nice and simple. Don't have curry mix to hand? I also have a simple recipe for Japanese Curry Sauce.
Turn the heat up to bring to a near boil, then reduce the heat and simmer gently for about 7 minutes, stirring frequently, until the sauce has cooked and reduced to a thick golden soup.