Preheat the air fryer to 350°F (175°C) for 3–5 minutes.
A hot basket helps the strips crisp faster.
Make the spicy sprinkles: In a small bowl, mix smoked paprika, chili powder, cayenne, garlic powder, cumin, salt, and black pepper. Add a pinch of sugar if you like a subtle sweet edge. Stir in lime zest if using.
Prep the tortillas: Stack the tortillas and slice into thin strips (about 1/4 inch wide).
Keep them even so they cook uniformly.
Coat with oil: In a large bowl, drizzle the strips with oil. Toss gently to coat—you want a light sheen, not slick. Add a touch more oil only if needed.
Season generously: Sprinkle the spice blend over the strips.
Toss again until every strip has a good dusting of spice. Taste one raw strip for seasoning; adjust salt and heat to your preference.
Arrange in the basket: Spread the strips in a loose, even layer. A little overlap is fine, but avoid thick piles.
Work in batches for best results.
Air fry for 4–6 minutes, shaking the basket halfway through. Watch closely after minute 4—thin strips go from perfect to too dark quickly.
Check for doneness: They should be crisp, lightly blistered, and a shade darker. If they’re still bendy, cook 1 more minute and check again.
Finish and cool: Transfer to a wire rack or paper towel.
While hot, add an extra pinch of salt or a squeeze of lime if you like. Let them cool fully to lock in the crunch.
Repeat with remaining batches and try not to eat them all before they cool.