Begin by peeling the onion and rinsing it with cold water. This will help remove any dirt or impurities from the onion's outer layers.
Trim approximately ½ inch from the top and bottom of the onion, and then proceed to cut it into thin rings. Aim for uniformity in thickness to ensure even soaking and flavor distribution.
Place the onion rings in a bowl and soak them in ice-cold water for 2-3 minutes. This step helps to crisp up the rings and reduces the sharpness of raw onions.
Drain the water completely from the bowl, ensuring that the onion rings are no longer immersed.
In a separate mixing bowl, combine the red chili powder, chaat masala, salt, ground coriander, ground cumin, lemon juice, chopped cilantro, chopped green chili, and garam masala. Mix well to create a flavorful spice blend.
Add the spice blend to the drained onion rings. Using your palms, gently mix the onions with the spices, ensuring that each ring is separated and coated evenly.
Next, allow the Lacha Pyaaz to marinate for a few minutes, allowing the flavors to meld together.
Finally, once ready, serve the Lacha Pyaaz immediately as a refreshing condiment alongside your favorite Indian dishes. Also, the zesty flavors and crunchy texture of the onion rings will complement a variety of meals, adding a burst of freshness to every bite.