First, gently fry the onion in a small frying pan on a medium heat until soft and browning.
Turn off heat and set aside.
Add the flour, tofu, garlic, nutritional yeast, water, and seasonings to a blender. Blitz to combine until you get a smooth batter. Add the onion and set aside for 10 minutes.
Add a splash more oil to the frying pan, then add 1/2 cup of the batter to the pan and tip to distribute towards the corners of the pan.
Cook on a medium heat for approximately 2 minutes until there are bubbles in the chickpea omelette and you can lift the edges up easily. Either flip it and cook on the other side for 30 seconds to a minute or pop the whole pan under the grill to cook on the top. Repeat.