Add soy sauce, ketchup, pineapple purée, ginger, garlic, and chili flakes to a blender cup.
Blend until smooth.
Marinate your chicken thighs in this sauce mixture for at least three hours if not overnight. Remember to only use half the sauce and reserve the other half (untouched by the raw chicken), for basting after cooking.
Add your chicken thighs to your air fryer. Depending on how many thighs you’re cooking you may need to do a couple of batches. Do not overcrowd your thighs.
Cook at 380° for 18 minutes or until internal temp reaches 165°. Flip after 9 minutes.
Brush on the reserved sauce and garnish Serve your chicken thighs over rice, noodles, or vegetables.
Notes
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.