Grilled Malai Broccoli

Name: Grilled Malai Broccoli
Ingredients: 1 medium red onion, thinly sliced; 1 Tbsp. fresh lime juice; 1 tsp. Kashmiri chile powder or paprika; 1 Tbsp. plus 2 tsp. Diamond Crystal or 2¾ Tbsp. Morton kosher salt, divided; 3 green Thai chiles or small serrano chiles; 3½ oz. Amul cheese or sharp cheddar, cut into 1 pieces; 2 garlic cloves, finely grated; 1 1 piece ginger, peeled, finely grated; 3½ oz. cream cheese, room temperature; ½ cup heavy cream; 2 Tbsp. cornstarch; 1 tsp. ground cardamom; ½ tsp. garam masala; ½ cup coarsely chopped cilantro stems; 2 medium heads of broccoli (about 1½ lb.), cut into 3 florets; Vegetable oil (for grill and brushing); Four to six 12 metal skewers