Slice the onions. Put them in a bowl. If you are using jalapenos, green chilies, or cilantro, add them to the onions now.
In a separate bowl, add the chickpea and rice flour, turmeric, salt, and chili powder. Add the chaat masala powder. Mix everything with a whisk.
Drizzle or spray oil onto the onions. Mix.
Add the dry powder and mix it with the onions.
Add a little water at a time and mix with your hands or a fork. The mixture should coat the onions.
Preheat air fryer to 350°.
Make patties with the onion mixture and add them to the air fryer. I made 4 at a time.
Fry them for around 8 minutes turning once in between. For the last 2 minutes, turn the heat up to 400°.
Take them out and enjoy your healthier Onion Fritters with some Ketchup or Sriracha.