In a large bowl, mix the ground chicken with garlic powder, red onion, Italian seasoning, chili flakes, breadcrumbs, sea salt, olive oil, and some freshly ground black pepper. Divide into 6 equal patties and refrigerate for about 2 hours.
Preheat the oven to 375˚F.
Melt the butter and mix in the hot sauce. Let it simmer for 2 to 3 minutes. Pour half of the sauce into a lightly oil baking tray.
Prepare the grill or a large cast iron pan over high heat. Grill the patties for 3 minutes on each side and transfer into the baking tray. Then pour the other half of the hot sauce on the patties and bake for about 6 minutes on each side.
Remove from the oven and brush with some of the hot sauce and place the patties on lightly toasted buns and top with some sweet and tangy coleslaw.
