Preheat oven to 400°. Using a sharp knife, cut through the 2 wing joints; discard wing tips. Combine next 7 ingredients; add wings and toss to coat., Line a 15x10-in. pan with foil; grease with cooking spray. Bake wings in prepared pan 10 minutes; reduce heat to 350° and bake until juices run clear, 12-15 minutes. Remove from oven; keep warm., Meanwhile, in a small skillet, spread sugar; cook, without stirring, over medium heat until it begins to melt. Gently drag melted sugar to center of pan so it melts evenly. Cook, without stirring, until melted sugar turns amber. Carefully stir in warm milk and butter. Simmer, stirring frequently, until thickened, 5-7 minutes. Keep warm., In a large skillet over medium heat, melt butter; add bread crumbs, 1 green onion, garlic, salt and pepper. Cook and stir until bread crumbs are golden brown, about 2 minutes. Set aside., To serve, toss wings in butterscotch sauce. Sprinkle with crumb topping, remaining green onion and sliced peppers, if desired. Serve hot.