Lay the chicken wings on kitchen paper and pat them dry.
Transfer the wings to a large bowl.
Mix the salt with the baking powder and sprinkle a teaspoon over the chicken. Stir the chicken pieces well and repeat the process until all of the powder is used.
Put the chicken wings on a wire rack.
Preheat the oven to 220 C / 425 F / 200 FAN / Gas 7 and bake the chicken for 40 minutes until crispy.
Place all of the sauce ingredients into the saucepan and place over a medium heat. Cook for about 2 minutes until thickened.
Transfer the wings to a large bowl and pour over the sauce. Stir well to coat all of the wings.