Add the chicken broth to a crock pot, followed by the chicken breasts. Season with salt, pepper, garlic powder, onion powder, and smoked paprika.
Cook on low for 3–4 hours or on high for 1–2 hours, until the chicken is fully cooked and tender.
In a large bowl, whisk together the mayonnaise, Greek yogurt, apple cider vinegar, sugar, garlic powder, onion powder, smoked paprika, salt, black pepper, and cayenne pepper.
Taste and adjust the seasoning as needed.
Fold in the coleslaw mix until everything is well-coated. Refrigerate until ready to serve.
About 10 minutes before the chicken is done, melt the butter in a microwave-safe bowl.
Whisk in the honey, smoked paprika, salt, garlic powder, and cayenne pepper. If the sauce thickens, microwave it for 10–15 seconds to re-liquefy.
Once the chicken is done, remove it from the crock pot and shred it with two forks.
Reserve 1 cup of the cooking liquid, discard the rest.
Return the shredded chicken to the crock pot along with the reserved liquid and the hot honey sauce. Toss the chicken in the sauce until well-coated. Set the crock pot to "warm."
Toast the brioche buns.
Pile the hot honey chicken on the bottom bun. Add extra Kinder's Hot Honey BBQ sauce if desired.
Top with coleslaw, then add the top bun.
Enjoy with potato wedges or chips!