Add Chicken to slow cooker
Drizzle maple syrup over chicken and mix to coat.
Spread chicken to cover bottom of slow cooker
Add carrots, parsnips, shallots, sweet potatoes & garlic
Add stock and cider
Add pepper, salt & thyme
Cover and cook on low for 8 hours (or high for 3-4 hours)
At end of cooking time reduce to warm.
Remove a cup or so of the broth to a mixing bowl
Add cornstarch to broth you've set aside and whisk thoroughly to combine
Pour back into slow cooker, mix to combine.
Cook additional 15 - 30 minutes, low heat, to thicken stew.
Serve hot