Trim the tops off the carrots and, if desired, peel.
Toss the carrots in olive oil, then arrange on a parchment-lined baking sheet. Season with salt and pepper, then place 4 whole sprigs of thyme on top.
Roast the carrots for 30-35 minutes or until desired softness.
While the carrots roast, whisk together balsamic vinegar and honey in a medium sized bowl and chop your remaining 2 sprigs of thyme.
Remove the carrots from the oven and toss them in your honey and balsamic vinegar mixture. Return to the baking sheet and sprinkle with chopped thyme.
Turn on your oven’s broiler, then return the carrots to the oven on the rack furthest from the broiler. Broil for 5 minutes until the honey begins to caramelize.