Place the chickpea flour / besan in a bowl, and add red chili powder, coriander, turmeric, salt and baking soda. Stir through, and then add a few tablespoons of water to make a thick batter. Let the batter sit for 10 minutes.
Add chopped onion, sliced onion, chopped coriander leaves / cilantro to the batter and mix through. If the batter is too thick, you can add a splash of water. In case the batter is too liquid, add a few teaspoons of chickpea flour / besan. The batter should not be too thick, and should not be too thin.
Grease the mini baking molds – you can use a pastry brush or use oil spray. Any kind of baking mold can be used, as long as it's on the smaller side. Pour the batter into the baking molds, filling about ½ - ¾ full, and spray with oil again. The batter shouldn’t be too thick, else it won’t cook from inside.
Place the baking molds in a pre-heated air fryer carefully. Air fry at 180 C for 4 - 5 minutes, until they are golden brown from the top. Open the air fryer basket, and then quickly unmold the air fried pakoras, and place them on the air fryer basket / tray. Use a butter knife, and heat safe gloves as the molds will be hot. Air fry for another 2 – 4 minutes till golden brown on both sides. Reduce the heating time if the baking molds that are used are on the smaller side.
Once the air fryer pakoras are crispy and golden brown, remove and serve hot with green chutney.