Mix all the ingredients except the chicken in an 8x8 baking dish or shallow resealable container. Add the chicken thighs, submerging them in the marinade. Cover and refrigerate for at least 2 hours.***
Place 2 of the chicken thighs in an air fryer basket and cook at 400ºF for 12-14 minutes or until each thigh reaches an internal temp of 165ºF at its thickest point.
Repeat for the remaining 2 thighs or refrigerate for later. If you air fry them immediately after the first batch, they'll likely cook a bit faster (by 1-3 minutes).
Notes
*Smaller/larger chicken thighs may affect cook time.**You can use other store bought balsamic vinaigrettes in place of the Trader Joe's version. And if you have balsamic vinegar on hand, mix it with a bit of olive oil, crushed garlic or garlic powder, and a pinch of sugar as a substitute in the marinade. ***You can marinate for up to 2 days.
For the Optional Sauce
To use the remaining marinade, bring it to a boil in a small saucepan and cook for a few minutes before turning off the heat and adding 2 Tbsp (28g) light butter and 2 Tbsp (42g) honey. Stir until the sauce thickens and coats the back of spoon. Be sure to fully boil the remaining marinade for food safety purposes.
Nutrition Facts Notes
Each chicken thigh has 5 WW SmartPoints (blue plan).
The nutrition facts are for the chicken thighs and marinade since there's no accurate way to calculate how much is discarded.
If you use the remaining marinade to make a sauce, each chicken thigh will have 345 calories, 33g of protein, 13g of carbs, 15g of fat, and 8 WW SmartPoints (blue plan).