Balsamic-Glazed Chicken with Tomato Basil Couscous

Ingredients

• 8 tomatoes
• 8 clove garlic, sliced thinly
• 1 1/2 tablespoon olive oil
• 8 x single skinless, boneless chicken breasts
• 1/2 cup balsamic vinegar
• 3 tablespoon honey
• 1/4 cup dry sherry
• 3 tablespoon whole-grain mustard
• 4 cup boiling water
• 4 cup couscous
• 1 1/2 tablespoon butter
• 1 cup loosely packed, finely shredded fresh basil