01 - Whisk together flour, eggs, dashi stock, soy sauce, and salt in a mixing bowl until smooth and thin. Set aside.
02 - Preheat a takoyaki pan over medium heat and lightly oil each well to prevent sticking.
03 - Pour batter into each well, filling completely to the top. Add octopus, tenkasu, pickled ginger, and green onion into each well.
04 - Let cook for 1-2 minutes until the edges begin to set and turn golden brown.
05 - Use skewers or chopsticks to turn each ball 90 degrees, allowing uncooked batter to flow out and form a round shape.
06 - Continue turning every 1-2 minutes until balls are golden and crisp on all sides, approximately 8-10 minutes total cooking time.
07 - Remove from pan and serve hot. Drizzle with takoyaki sauce and mayonnaise, then sprinkle with aonori and katsuobushi.