Preheat the oven to 250 degrees. Pat the chicken wings dry and sprinkle with salt. Cover a sheet pan with foil and place a rack on top. Place the chicken wings on the rack and bake for 15 minutes. Turn the wings over and bake another 15 minutes. Turn the wings again and increase the heat to 425. Bake for 15 minutes, Turn over and glaze with sauce. Bake for 15 more minutes. Glaze again and bake 5 minutes. Remove from oven and cool slightly before serving. Garnish with green onions if desired.