To cook sabzi style dishes in the air fryer, chop things a little smaller than you would for stovetop cooking. In this preparation, I cut the bell peppers and onions smaller than usual.
Prepare the tadka: In a small pan, melt the butter over medium heat. Add cumin seeds and let them sizzle for a few seconds. Add chopped onions and sauté until they are translucent and lightly browned. Add chopped garlic, ginger, and green chili (if using). Cook for another minute. Stir in the tomato paste, salt, cumin powder, and coriander powder. Cook for about 2 minutes, until the mixture is fragrant.
