Slow Cooker Buffalo Chicken

Bahan-bahan (6 porsi)

• 1 ½ pounds boneless skinless chicken breasts
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• ½ teaspoon black pepper
• 3 tablespoons unsalted butter
• 1 cup Frank's Buffalo Hot Sauce (*)
• 6 brioche buns (or 12 slider rolls for serving)
• 12 ounces coleslaw mix (for serving)