01 - In a mixing bowl, whisk together the flour, eggs, dashi stock, soy sauce, and salt until smooth and thin. Set aside.
02 - Preheat a takoyaki pan over medium heat and lightly oil each well.
03 - Pour batter into each well, filling to the top.
04 - Add a piece of octopus, a little tenkasu, pickled ginger, and green onion into each well.
05 - Let cook for about 1–2 minutes until the edges start to set.
06 - Use skewers or chopsticks to turn each ball 90 degrees, allowing uncooked batter to flow out and form a round shape.
07 - Continue turning every 1–2 minutes until balls are golden and crisp on all sides (about 8–10 minutes total).
08 - Remove from pan and serve hot, drizzled with takoyaki sauce and mayonnaise. Sprinkle with aonori and katsuobushi.