Cut the potatoes into 3/4 inch cubes and place onto a paper towel.: The moment you begin cutting, you ll notice the raw potato scent, fresh and earthy. Uniform 3/4 inch cubes are essential because they allow even cooking and consistent browning, so take a minute to size them carefully. As you arrange them on a paper towel, you ll see moisture bead on the surface, which we want to reduce so the exterior crisps rather than steams. A common mistake is cutting uneven pieces which leads to some cubes being underdone while others are overcooked, so keep the pieces consistent.
Use another paper towel to blot the potatoes and get as much moisture off as you can.: Patting the cubes dries the surface and is satisfying to watch because the paper towel draws away water that would otherwise prevent crisping. The potatoes will feel less slippery and a bit drier to the touch when you re done. This drying step matters because excess moisture creates steam in the basket, which softens the skin instead of creating a crunchy crust. Avoid skipping this step, as wet potatoes will not achieve the same golden texture.
Toss the potatoes with the oil, and then the rest of the seasoning.: Once dry, the cubes should glisten slightly after a light coating of oil, helping the spices stick. When you sprinkle the paprika, onion powder, garlic powder, salt, and pepper, toss gently to distribute the seasoning so each piece gets an even kiss of flavor. You ll notice the aroma of the spices bloom as they touch the warm oil. A frequent error is over tossing which can break the cubes, so be gentle and thorough to maintain shape and seasoning balance.
Place into the basket of your air fryer and cook at 400°F for 10 minutes. Then, shake and cook another 5-7 minutes until golden brown and crispy.: As the basket goes in, you ll hear the fan start and soon the temp rises, producing a dry heat that toasts the exterior. Ten minutes at 400°F is the first phase to set the crust and start evaporating surface moisture. You ll see edges begin to color and smell a roasted perfume. One pitfall here is overcrowding the basket, which inhibits air circulation and prevents crisping, so arrange in a single layer when possible.
Then, shake and cook another 5 to 7 minutes until golden brown and crispy: After the initial cook, shaking the basket redistributes the pieces so exposed faces can brown evenly, and you ll immediately notice the sizzling intensify. In the final 5 to 7 minutes you re looking for a deep golden tone and a crunchy exterior that resists when you press gently with tongs. The internal texture should be tender and steaming slightly when pierced. A common mistake is stopping too soon; if some cubes still look pale, give them a couple more minutes and check again, since visual cues matter more than a strict timer.