Preheat oven to 375° F. Place carrots on a baking sheet. Line with parchment or non-stick foil first if desired for easier clean up.
In a small bowl, add oil, balsamic vinegar, honey, garlic, parsley, cayenne, salt, and pepper. Whisk to combine then pour over carrots. Place sprigs of thyme on top of carrots.
Place in oven and roast for 20 minutes. Use tongs to turn carrots over then roast for 15-20 more minutes or until desired tenderness.
Serve immediately and sprinkle more fresh herbs on top if desired.
Notes
Baby carrots can be used as well. Halve them lengthwise if they are "fatter."