Shred the cabbage thinly.
In a bowl, mix eggs, flour, and water.
Add the shredded cabbage and salt to the batter and mix.
Heat cooking oil in a pan and pour the batter onto it.
Cook over medium-low heat until golden brown.
Flip and cook the other side as well.
Drizzle okonomiyaki sauce and mayonnaise over the finished okonomiyaki.
Top with bonito flakes and green onions to finish.