VERTICAL SKEWER STAND: Preheat your oven to 450 F.
If you are using the vertical skewer stand, place half an onion on the bottom of your skewer and then begin layering the chicken thighs. Top it off with the other half of the onion and cover with foil.
I baked mine for about an hour, I suggest checking every 15-20 minutes after the first 45 min to check the internal temperature.
Once the internal temperature was around 158-160, I removed the foil and allowed the outside to crisp up while the internal temperature rose to 165.
Allow to cool slightly and slice vertically to add to your sandwich.
STOVE TOP: If you don't have a skewer stand, you can always cook the chicken on the stove top!
Heat up a tbsp of olive oil and add your chicken to the hot skillet.
Cook through until your chicken has an internal temperature of 165 F.
Once done, slice up your chicken to add to your sandwich.