In a clean saucepan, over medium low heat, stir together the teriyaki sauce ingredients
Add in the slurry and allow to cook until it thickens. This will take just a few minutes.
Use two thirds of the sauce to marinate the chicken.
Reserve the one third to brush over the chicken after it has been cooked.
Allow chicken to marinate for 30 minutes in the fridge.
Make the skewers by adding and alternating with pineapple chunks and chicken.
Spray the air fryer basket with cooking oil.
Add a single layer of chicken skewers to the basket.
Do not crowd or overlap the skewers.
Set the temperature to 200 degrees celcius
Set the timer to 6 minutes, then flip, and cook for another 4-6 more minutes until chicken is cooked through and the sauce has lightly caramelized on the outside.
Use reserved sauce for topping the chicken and sprinkle with sesame seeds and chopped spring onion.
