I happened to be at the grocery store just as they marked down that day's rotisserie chicken. I planned to use chicken breasts for tomorrow's Sesame Noodles with Shredded Chicken, but at that price it was hard to turn down rotisserie chicken. So now I've got it shredded, and as grocery store rotisserie chicken tends to be, the flavor is really nice. It's missing some char though.
The sauce I'm tossing with the final dish includes sesame seeds, peanut butter, garlic, ginger, soy sauce, rice vinegar, sriracha and brown sugar. I could make a little extra sauce (maybe heavy on the sugar for the caramelization?), and toss the chicken with a bit of that and put it under a hot broiler for a bit.
My thinking is to marinate the chicken in the sauce and briefly put it under a blazing hot broiler to char the marinade. I want to avoid overcooking the chicken and of course I want to avoid any nasty burnt flavors. Any advice or caveats?
EDIT: Just to follow up. I followed the advice of the posters here and did not further cook the chicken. I did add some fairly heavily charred multicolored bell peppers. That did the trick, it was a new recipe and it made a lovely meal.