1. Neatly score each chicken breast on both sides with a sharp knife.
2. Mix together in large bowl, Mrs. Dash® Extra Spicy Seasoning Blend, brown sugar and lemon juice. Add the breasts and coat thoroughly. Let rest 5-10 minutes.
3. Heat a grill or cast iron grill plate. Spray with cooking spray.
4. Grill chicken breasts on each side, 6-8 minutes, or until fully-cooked. Put on plate, cover, and let rest 3-4 minutes. Spoon remaining juices over the top of each breast.