Indoor BBQ Chicken Skewers

3 TBS brown sugar
1 TBS paprika
1/2 tsp ground cumin
1/2 tsp cayenne pepper
1/4 tsp salt
4 boneless, skinless chicken breasts cut into 1 inch chunks
3/4 cup barbecue sauce (Bull's Eye or Texas Best recommended)
2 TBS cider vinegar

Optional Sauce
3 TBS cider vinegar
1/2 cup sour cream
1/4 cup barbecue sauce
2 TBS minced fresh cilantro

1. Adjust oven rack to highest position (about 5 inches from broiler element) and heat broiler. Set wire rack over rimmed baking sheet. Combine sugar, paprika, cumin, cayenne, and salt in large bowl. Add chicken and toss to coat. Thread seasoned chicken onto four 12-inch metal skewers.

2. Whisk 3/4 cup barbecue sauce and 2 TBS vinegar in small bowl. In second bowl, combine sauce ingredients and set aside.

3. Brush each kebab with barbecue sauce-vinegar mixture. Broil until lightly browned, 5-7 minutes. Flip kebabs, brush with remaining sauce and continue to broil until chicken is lightly charred and cooked through, 5-7 minutes. Serve with the sour cream sauce if you desire.