Skillet Tomato Chicken

Bahan-bahan (4 porsi)

• 1 1/4 pounds boneless skinless chicken breasts ((about 4 small or 3 medium breasts))
• 1 teaspoon kosher salt (divided)
• 1/2 teaspoon ground black pepper (divided)
• 2 tablespoons extra-virgin olive oil (divided)
• 1/2 medium red onion (diced (about 1 cup))
• 1 tablespoon minced garlic (about 3 cloves)
• 4 cups grape tomatoes (or other assorted tomatoes, or diced plum tomatoes, halved)
• 1/4 cup drained capers
• 2 tablespoons red wine vinegar
• 1 teaspoon honey
• 1/4 cup chopped fresh parsley