For best results, use full-fat yogurt for a richer marinade. Soaking the skewers in water prevents them from burning on the grill. If you don't have an outdoor grill, you can cook the kebabs in a grill pan on the stovetop or bake them in a preheated oven at 400°F (200°C) for 20-25 minutes. Feel free to adjust the amount of chile flakes to suit your preferred level of spiciness.