Root Beer Chicken Wings

3lb chicken wings Sprinkle salt to taste 3 tsps. pepper 1 cup BBQ sauce 17oz root beer BBQ sauce, to taste ¼ cup brown sugar, to taste Place crock pot liner in slow cooker. Season chicken wings with salt and pepper. Add chicken wings, bbq sauce and root beer to slow cooker. Cover, cook on low for 4 hours. Remove wings from slow cooker, place on parchment lined tray. Brush more sauce onto wings, sprinkle on some brown sugar. Place under broiler for 8 -10 minutes.