Slice the white onion, add to a bowl, add the salt and leave to the side to rest.
While the onion sits, prepare the other ingredients. Slice the mango, the red onion, the tomato, grab the burger buns and two plates. If you like your burger buns toasted, now is the time! Get the mayonnaise in a small bowl and stir in the curry powder.
After 10 minutes, add the chickpea flour and the seasoning to the onion and mix well.
Heat up the sunflower oil. Make sure the oil is very hot before adding the bhaji mix.
With a big spoon, scoop the bhaji into the hot oil in the shape of a burger. With a spatula, flip them over after a few minutes.
They're done when they're nice and golden brown.
Get the buns ready, add the curry mayo, the lettuce, the bhaji burger, the mango, the tomato, the red onion, a bit of coriander, and dig in!