Mix 100g okonomiyaki flour and 100ml water together and set aside.
Add cabbage, spring onion and carrot to batter mix.
Add your chosen fillings.
Add egg and mix the ingredients together.
Heat up a frying pan with a little oil.
Pour mixture into a round pancake shape in the centre of the pan.
If using meat, start cooking your meat strips separate from the pancake.
Once the underside of the pancake is brown in colour, add the cooked meat to the top and flip over to finish cooking.
Press down on mixture with a spatula to make it an even thickness.
When both sides of the okonomiyaki are golden brown, flip on to a plate and cut into slices like a pizza.
Smother with okonomiyaki sauce and mayonnaise, sprinkle with bonito flakes, and eat!