Tangy Chicken Sandwiches

I ended up marinating these for about 5 hours. The chicken was very flavorful and moist. It was kind of a lot of work for the sauce but it was good. Next time I'll filet my chicken breasts so they're thinner for the sandwich.

Tangy Chicken Sandwiches

3/4 cup Louisiana-style hot sauce
1/3 cup packed brown sugar
3 tablespoons butter
4-1/2 teaspoons cider vinegar
3/4 teaspoon taco seasoning
2 boneless skinless chicken breast halves (5 ounces each)
2 tablespoons crumbled blue cheese
2 tablespoons buttermilk
2 tablespoons mayonnaise
1-1/2 teaspoons shredded Parmesan cheese
1-1/2 teaspoons minced chives
3/4 teaspoon lemon juice
1/4 teaspoon balsamic vinegar
1/8 teaspoon minced garlic
1/8 teaspoon pepper
2 onion rolls, split and toasted
2 cooked bacon strips
2 slices Colby cheese (3/4 ounce each)
2 lettuce leaves
2 slices tomato
2 slices red onion

Directions:
In a small saucepan over medium heat, bring the first five ingredients to a boil; boil, uncovered, for 1 minute. Cool for 10 minutes; set aside 1/4 cup for basting. Flatten chicken to 1/2-in. thickness. Pour remaining marinade into a large resealable plastic bag; add chicken. Seal bag and turn to coat; refrigerate for at least 2 hours. Drain and discard marinade from chicken. Grill chicken, covered, over medium heat or broil 4 in. from heat for 5-6 minutes on each side or until no longer pink, basting occasionally with reserved marinade. In a small bowl, combine the blue cheese, buttermilk, mayonnaise, Parmesan cheese, chives, lemon juice, vinegar, garlic and pepper. Spread over roll bottoms; top with the chicken, bacon, cheese, lettuce, tomato and onion. Replace roll tops. Yield: 2 servings.