Mix olive oil, cumin, chili powder, onion powder, garlic powder, coriander, salt, and pepper together in a small bowl. Pour over the sweet potato fries in a large bowl, then toss to thoroughly coat.
Bake in Oven
Preheat your oven to 425°F (218°C) and line a baking sheet with parchment paper to prevent sticking.
Spread the fries in a single layer, leaving space between each piece. Bake for about 20-25 minutes, flipping halfway through. Keep an eye on them in the final minutes to prevent over-browning.
In Air Fryer
Preheat your air fryer to 375°F-400°F. Just like with baking, ensure the fries are in a single layer. You will need to bake in multiple batches.
Depending on your air fryer model, cook for 10-15 minutes, shaking the basket halfway for even cooking.
Serve immediately with your favorite dipping sauce.