Gather all ingredients before starting recipe
Mix 1/3 cup balsamic vinegar, 1/2 cup chicken stock, 2 tbsp sugar, and 1 clove grated garlic, grated in a small bowl. Place chicken and marinade into a resealable plastic bag. Place chicken in the fridge for 10 minutes and up to 1 hour before cooking
Measure 1/2 cup couscous and place in a medium bowl, pour 3/4 cup chicken stock into a measuring cup and heat on high in microwave for 2-3 minutes, or until the broth comes to a boil.
Pour broth over couscous, cover with cling wrap and set aside for at least 5 minutes and up to 10 minutes.
Heat skillet over medium high heat for 1-2 minutes, 1 tsp olive oil and heat until hot, another minute.
Remove chicken from marinade, pat dry with a paper towel and place in the hot skillet. Reserve Marinade.
Cook chicken over medium high heat for 3-4 minutes, or until golden,
Turn and cook the second side for another 3-4 minutes, until golden on both sides
Pour reserved marinade in the skillet and cook on medium high heat until the marinade is reduced and the marinade has thickened and the chicken has cooked through, about 7-10 minutes.