Combine all marinade ingredients in a large glass or non-reactive bowl and stir to combine.
Place the pork tenderloin in a gallon-sized freezer bag and pour half the marinade over top. Reserve the remaining marinade in an airtight container in the refrigerator. Seal the bag tightly and marinate at room temperature for 30–60 minutes, or refrigerate overnight. Turn the bag several times while marinating to ensure even coverage.
Remove the pork from the refrigerator 30 minutes before cooking to take the chill off.
Select the “Air Crisp” function on your air fryer, set to 400°F, and pre-heat.
While the air fryer heats, place the carrots on a plate and drizzle with 1 tablespoon of the reserved marinade. Toss to coat evenly.
When the air fryer is ready, place the marinated pork tenderloin in the basket. Arrange the whole carrots around the pork and close the lid. Cook for 10 minutes.
Lift the lid and carefully turn both the tenderloin and the carrots. Close the lid and continue cooking for the remaining time. Tip: Check the internal temperature of the pork after 15 minutes total and adjust accordingly. Remove when it reaches just above 140°F — it will continue rising to the safe 145°F while resting.
Remove the pork and carrots from the air fryer. Rest the pork for 3–5 minutes.
While the pork rests, gently warm the remaining marinade in a small skillet over low heat.
Slice the pork tenderloin and arrange on a serving platter with the whole carrots. Drizzle the warm glaze over top, garnish with fresh thyme if desired, and serve immediately. Enjoy!