Grilled Chili Lime Butter Corn on the Cob

 ears corn, husks removed

sweet chili sauce

tablespoons melted butter

 tablespoon sriracha

 cloves garlic, finely minced

Juice of 2 limes

Crushed red pepper flakes (optional)

Kosher salt and freshly ground black pepper

Freshly chopped cilantro, for garnish

red thaï chili, finely sliced, for garnish