Most Japanese people buy their takoyaki sauce at the store and I do too! Takoyaki sauce is a thick brown sauce that’s similar to Worcestershire sauce but more fruity and thick. It comes in a handy squeeze bottle with a cute octopus on it. It’s really similar to okonomiyaki and tonkatsu sauce, so if you have those in the fridge you can use them too. Takoyaki sauce is sold online and in Asian grocery stores. If you need to make a sub at home, make this easy takoyaki sauce: mix together 2 tablespoons ketchup, 1 tablespoon Worcestershire sauce, 1 tablespoon mirin, 1 tablespoon soy sauce, 1 tablespoon ketchup, 2 teaspoons oyster sauce, and 1 teaspoon sugar.
After the sauces, a handful of katsuobushi and a sprinkle of aonori are added for the finishing touch. Katsuobushi is dried bonito flakes and they’re those little whisps that look like they’re dancing when your takoyaki is hot. Aonori is a powdered seaweed. They sell both katsuobushi and aonori online and in Asian grocery stores. If you don’t have aonori, you can use seaweed strips! Unfortunately there isn’t really a sub for katsuobushi.