Soak eight wooden skewers in water, completely submerged for at least 30 minutes.
Dice chicken into bite-sized pieces making sure they are large enough to thread onto the skewers.
Thread each piece onto the wooden skewers. Make sure to leave a little space between each chicken piece.
If you want to marinate your chicken, place them in a container, after slicing but before threading onto the skewers, with half of the sauce you'll prepare. Let the chicken sit for 30 minutes or several hours in the fridge.
Whisk together honey, tomato paste, apple cider vinegar, chipotle chili powder, chopped garlic, and optional salt in a small bowl.
Once the sauce is prepared, use half as a marinade or all of it to baste the chicken during cooking.
Set your pellet grill or smoker to 400°F.
Add skewers to a hot grill surface and cook for about 45 minutes, or until chicken reaches 165°F internal temp. Times will vary, so keep an eye on the food. Baste the chicken with sauce and turn the skewers every 10 minutes.
Once done, remove them from the grill and serve hot.