Preheat your oven to 400°F (200°C) and line a large baking sheet with parchment paper for easy cleanup.
Peel the carrots and slice them into 1-inch thick diagonal rounds to ensure even cooking.
In a small glass bowl, whisk together the maple syrup, extra virgin olive oil, apple cider vinegar, fresh thyme, sea salt, and black pepper until well combined.
Place the chicken breast and sliced carrots on the prepared baking sheet, ensuring they are spread out in a single layer.
Drizzle the maple-thyme mixture over the chicken and carrots, using a brush or clean hands to coat every piece thoroughly.
Roast in the center of the oven for 20 to 25 minutes, or until the chicken reaches an internal temperature of 165°F and the carrots are tender and slightly caramelized.
Remove from the oven and let the chicken rest for 5 minutes before slicing to keep the juices locked in.
Serve the sliced chicken alongside the glazed carrots, drizzling any remaining pan juices over the top for extra flavor.