6 chicken breasts
2 tsp. garlic powder
1 tsp. ground black pepper
2 tsp. salt
2 tbsp. Dijon or Spicy Brown mustard
2 tsp. dried rosemary
3/4 cup brown sugar
1/8 cup lemon juice
1/4 cup Worcestershire sauce
1/4 cup soy sauce
1/2 cup balsamic vinegar or other vinegar
1/2 cup extra virgin olive oil