Ham, Mozzarella and Caramelized Onion - Stuffed Chicken Recipe

Ingredients

• 5 cups (1.25 L) sliced onion
• 4 cloves garlic, sliced
• 3 shallots, sliced
• 2 tbsp (30 mL) olive oil
• 1⁄4 cup (60 mL) butter
• 1 tsp (5 mL) salt
• 1 tsp (5 mL) pepper
• 1⁄4 cup (60 mL) sherry
• 1⁄2 cup (125 mL) finely chopped Westphalian ham
• 2 cups (500 mL) diced fresh mozzarella or bocconcini cheese
• 1⁄4 cup (60 mL) grated Parmesan cheese
• 1⁄4 cup (60 mL) fine breadcrumbs
• 3 tbsp (45 mL) chopped chives
• 8 x 7-oz (200-g) chicken breasts (bone in, skin on)