Aosa Ko (あおさ粉), also known as Aonori, is a type of edible green seaweed from Japan, dried and powdered into fine flakes. These seaweed flakes have a distinctive, slightly sweet and rich umami flavour with a fresh, oceanic aroma, similar to nori but more delicate. It is most commonly used as a finishing garnish in Japanese cooking, sprinkled over dishes just before serving to add a pop of colour and a boost of savoury taste. Try adding it to classic street food dishes like takoyaki (octopus balls), okonomiyaki (savoury pancakes), or yakisoba (fried noodles) for an authentic flavour. It also works wonderfully as a seasoning for rice, tempura, salads, and soups. For best results, store in a cool, dry place away from direct sunlight to preserve its colour and aroma. This is a staple ingredient for anyone looking to recreate authentic Japanese flavours at home.