In a large mixing bowl, combine maple syrup, Dijon mustard, olive oil, apple cider vinegar, salt, and black pepper. Whisk together until well combined.
Add the peeled baby carrots to the bowl and toss them in the glaze mixture until fully coated.
Arrange the glazed carrots in a single layer on a baking sheet lined with parchment paper for easy cleanup.
Roast in the preheated oven for about 20–25 minutes, or until the carrots are tender and slightly caramelized, stirring halfway through to ensure even cooking.
Once done, remove from the oven and let cool for a couple of minutes. Drizzle any remaining glaze from the baking sheet over the carrots.
Transfer the glazed carrots to a serving dish and garnish with chopped fresh parsley for a pop of color and freshness.
Notes
For a variation, try adding other root vegetables.