316 calories; 4.5 g fat; 1 g saturated fat; 64 mg cholesterol; 690.3 mg sodium; 42.4 g carbohydrate; 2.4 g fiber; 7.4 g sugar; 29.7 g protein
In a slow cooker, add chicken, ½ cup wing sauce and onion. Cover and cook on low for 6–7 hours or on high for 4–5 hours.
Remove chicken from slow cooker and shred using 2 forks. Reserve ¼ cup liquid from slow cooker.
Place shredded chicken back in slow cooker with reserved cooking liquid and remaining wing sauce. Stir to combine. Place ¼–⅓cup chicken on each bun and serve with additional wing sauce and ranch or blue cheese dressing, if desired.