Chicken Cacciatore

Ingredients

• 1 tbsp extra virgin olive oil
• 4 large chicken breasts
• 1 large onion, chopped
• 1 celery stick, chopped
• 1 carrot, peeled, chopped
• 75g sliced pancetta, chopped
• 2 garlic cloves, crushed
• 1/2 cup button mushrooms, sliced
• 50ml dry white wine
• 400g can diced tomatoes
• 1/2 teaspoon brown sugar
• 1 tbsp balsamic vinegar
• 1 tbsp chopped fresh rosemary
• 1 bay leaf
• 1/2 cup pitted Kalamata olives
• Chopped flat-leaf parsley, to garnish