01 - Place chicken thighs in a slow cooker and cover with barbecue sauce. Cook on low for 4 to 5 hours or high for 2 to 3 hours until the chicken is exceptionally tender and easy to shred.
02 - In a mixing bowl, combine coleslaw mix, mayonnaise, apple cider vinegar, sugar, salt, and black pepper. Stir until the vegetables are thoroughly coated and the flavors are well combined. Set aside.
03 - Remove chicken from the slow cooker and shred using two forks. Return the shredded chicken to the slow cooker and mix thoroughly with the barbecue sauce.
04 - Layer the BBQ pulled chicken on the bottom half of each slider bun. Top with freshly made tangy coleslaw. Cap with the top half of the slider bun and serve immediately.