Pat the chicken wings dry, and salt them
Optional: leave uncovered overnight in the fridge (this helps the skin dry out for crispier wings)
Preheat oven to 200 deg C
Put the wings skin side up, on greaseproof paper, onto a baking sheet
Bake in the oven for 20 minutes
Reduce the heat to 160 deg C
Bake for another 15 minutes
Whilst the wings are baking, prepare the sauce.
Mix the remaining ingredients together in a pan with a splash of water, and heat until bubbling. Take off the heat until the wings are done.
When the wings finish cooking, transfer them to a bowl with the sauce, and toss them until coated evenly.
Serve sprinkled with sesame seeds and chopped spring onion.