Preheat oven to 425°F (or get out that air fryer!)
Cut the carrots into matchstick sizes and combine in a large bowl with, oil, cornstarch, garlic powder, paprika and cayenne pepper. Toss to evenly coat carrots.
Spread on a parchment lined baking sheet. Bake for 15-20 minutes (depending on how crispy you want them), flipping every 5-7 minutes until golden and crispy.
While the carrots are cooking, mix together all the ingredients for dipping sauce in a small bowl and set aside until ready to serve.
Season carrots with some salt, nutritional yeast, and parsley. Serve warm carrots with truffle mayo.