What is tacoyaki?

Takoyaki is a popular Japanese street food dish that originated in Osaka. It is a ball-shaped snack made of batter filled with diced octopus, tempura scraps (tenkasu), pickled ginger, and green onions, and cooked in a special takoyaki pan. The takoyaki balls are then brushed with a sweet and savory sauce and sprinkled with toppings such as dried bonito flakes, mayonnaise, and seaweed flakes. Takoyaki is a popular snack in Japan, and can also be found in other countries such as Taiwan, Thailand, and the United States.