In a chopper or a grinding jar, add chopped onion, garlic, green chilies, coriander leaves, mint leaves, and kasoori methi. Grind everything without adding any water.
In a large mixing bowl, add minced chicken, ground masala from the grinder, roasted chickpea flour, red chili powder, garam masala powder, black pepper powder, salt, egg white, and melted butter or ghee.
Mix everything well until all the spices and aromatics have smoothly combined with the chicken mince. This takes at least 5 minutes of mixing with hand.
Marinate the chicken kabab mixture for 1 hour in the refrigerator.
Dip your hands in cold water and take a handful of kabab mixture. Shape it around a skewer. Dip your hands again in the water and flatten the kababs by making small dents with help of your thumb and index finger.
Heat cooking oil in a large flat pan for 5 minutes on low flame. Place the kabab skewers side by side and cook on all four sides on low flame. Keep the flame between low and medium.
Keep turning the skewers after every 5 minutes so that all the sides are evenly cooked.
Remove from pan when the kababs turn golden. Each batch of kabab on pan will take about 15 to 20 minutes to cook.
Serve hot with mint chutney.
Or serve as kabab stuffing in rolls.