Taken from All Recipes:
6 skinless, boneless chicken breast halves
1 (12 ounce) bottle barbeque sauce
1/2 cup Italian salad dressing
1/4 cup brown sugar
2 tablespoons Worcestershire sauce
-Place chicken in a slow cooker. In a bowl, mix the barbecue sauce, Italian salad dressing, brown sugar, and Worcestershire sauce. Pour over the chicken.
-Cover, and cook 3-4 hours on High or 6-8 hours on Low.
-About 1 hour prior to serving time, shred chicken and put back in sauce and stir to let it soak up the sauce.
-Serve on toasted buns with some spicy pepper jack cheese. YUM!!!