01 -
Lightly coat a 6-litre slow cooker with nonstick cooking spray. Layer chicken breasts in the insert. Evenly sprinkle with brown sugar, garlic powder, onion powder, cayenne pepper, and salt. Arrange butter slices over the chicken.
02 -
Cover with lid and cook for 5 to 6 hours on low or 3 to 4 hours on high, until chicken is tender and fully cooked.
03 -
Using two forks, shred the chicken directly in the slow cooker, mixing well with the cooking juices. Optionally, use an electric hand mixer for finer shredding if the insert is compatible.
04 -
In a small saucepan, combine butter, brown sugar, cayenne pepper, garlic powder, onion powder, and salt. Place over medium heat, whisking constantly until the sauce reaches a simmer. Remove from heat immediately.
05 -
Pile shredded chicken onto sandwich buns. Drizzle generously with Nashville hot sauce. Garnish with pickle chips and sliced white onion as desired. Serve warm.