Add a touch of umami to your dishes Mirin is an all-purpose cooking secret that adds a sweet and deep flavour to your dishes. It's a great way to keep meat tender and flavourful without making it fall apart, and it enhances the savoury flavour of fish. If you're looking to add a rich flavour to any dish, try using mirin. It's subtle sweetness and aroma will give your food a glossy finish and make it even more delicious.