Smoke Chicken Breasts (Crispy & Juicy)

Name: Smoke Chicken Breasts (Crispy & Juicy)
Prep time: 45 min
Cook time: 1 h
Total time: 1 h 45 min
Cuisine: American
Ingredients: 4 chicken breasts (large, bone-in and skin-on); 3 Tbsp butter (for searing); 1 Tbsp oil (for searing); 1/2 cup BBQ sauce (for glazing; use your favorite BBQ sauce); 1 tsp kosher salt (or to taste); 1 Tbsp brown sugar; 1 Tbsp Ancho chile powder; 1 tsp black pepper ( or to taste); 2 tsp garlic powder; 2 tsp onion powder; 1/4 tsp cayenne pepper (optional; adjust the amount to taste); 1 tsp dried rosemary leaves (ground); 1/2 gallon ice cold water; 6 Tbsp kosher salt; 3/4 cup brown sugar (or white sugar); 1 large carrot (peeled and cut into pieces); 1 medium onion (peeled and cut into pieces); 4 cloves garlic (peeled and cut in halves); 2 bay leaves; 1/2 Tbsp whole black peppercorns