Finely chop cabbage and finely grate carrot.
Mix cabbage, carrot, egg, flour and hondashi in a bowl. Season with salt and pepper.
Heat some oil in a medium hot pan.
Pour the batter into the pan, flatten it out so it is about 2 cm thick, cover with a lid and cook for about 2 min.
Flip the okonomiyaki and cook for another 2 min or until cooked through.
Top your okonomiyaki with kewpie mayonnaise, okonomiyaki sauce, aonori and bonito flakes.