Chicken Seekh Kebabs

Name: Chicken Seekh Kebabs
Cuisine: Indian
Ingredients: Vegetable oil (for grill and hands); 2 lb. ground chicken, preferably dark meat; ¾ cup (loosely packed) finely grated Amul cheese or sharp cheddar; ¾ cup finely chopped cilantro; ¾ cup finely chopped mint; 10–12 garlic cloves, finely grated; 1 4" piece ginger, peeled, finely grated; ½ jalapeño or serrano chile, seeds removed if desired, finely chopped; 2 tsp. ground cardamom; 2 tsp. garam masala; 2 tsp. kala jeera (black caraway seeds; optional); 2 tsp. Diamond Crystal or 1¼ tsp. Morton kosher salt; 1½ tsp. deggi mirch (Kashmiri chile powder) or 1 tsp. cayenne pepper; 1 tsp. ground mace (optional); 4 Tbsp. unsalted butter, melted; 16 bamboo skewers, soaked 30 minutes, or 8"–10" metal skewers