Preheat the oven to 425°F or gas mark 7. Spray the baking rack with cooking spray and place in the foil lined sheet pan.
Place the chicken wings on the baking rack and sprinkle the salt and pepper over each side. Bake for 40 minutes. The wings should be crispy and brown.
While the chicken is cooking in a sauce pan, over medium high heat, heat the butter, onions, and garlic until the onions become clear, soften and then start to brown. Once the onions have cooked down add the rest of the ingredients and bring to a boil. Allow to reduce to about ⅓ of the original volume.
Strain into a large bowl using a fine mesh sieve. Once the chicken is done place in the bowl and toss to coat. Reserve any left over sauce in a bowl to use for dipping.