01 -
Place chicken breasts into the slow cooker.
02 -
In a medium bowl, whisk together barbecue sauce, brown sugar, apple cider vinegar, olive oil, garlic powder, onion powder, smoked paprika, chipotle chili powder, and white pepper until fully combined.
03 -
Pour the sauce mixture over the chicken and stir gently to coat evenly.
04 -
Cover and cook on low for 6–7 hours or high for 3–4 hours.
05 -
When chicken is tender and easily shreds with a fork, shred the chicken directly in the slow cooker using two forks.
06 -
Stir well to ensure the chicken is fully coated in the sauce. Serve warm on buttered, toasted hamburger buns.