Pork, apple and sage stuffed chicken breast

• 4 chicken breast free-range, skinless

Stuffing:

• 1/2 white onion or 1 shallot, finely chopped
• 1 clove garlic crushed
• 1 Tbs butter
• 3 pork sausages meat removed from the casing
• ¼ cups sultanas
• 1 Tbsp sage finely chopped
• 1 Tbsp parsley finely chopped
• 1/2 cup bread crumbs
• 1 apple peeled, and grated
• 1 tsp Dijon mustard
• olive oil for brushing
• salt
• black pepper
• 4- 8 lices prosciutto
• sage 2 - 3 per breast, extra leaves for garnish
• 12 pieces butcher's twine string or twine to tie bundles