The best air fryer French fries are made with the right kind of potatoes: Beneath their thick skins, russets are packed with starchy flesh that is often described as “fluffy.” Aside from sounding adorable, that means fries with soft and tender insides. For golden and crunchy outsides, be sure to rinse away excess starch from the cut potatoes: simply give them a quick, cold shower, or for extra crunchy fries, you can soak them in water overnight in the fridge. Drain and pat dry to remove as much moisture as possible. Your air fryer will do the rest: a fan and heating element combine to force hot air all around the potatoes for crunchy-tender fries with only a slight coating of oil.
Optimal French fries begin with the right potato: Russets, with their high starch content, yield a fluffy interior, crucial for the desired contrast with a crispy exterior. The most critical step is rinsing and thoroughly drying the cut potatoes; excess starch inhibits crisping, and moisture creates steam instead of promoting browning. For maximum crunch, soaking the cut fries in cold water for at least 30 minutes, or even overnight, before drying is highly recommended. Always cook fries in a single, non-overlapping layer in the air fryer, working in batches to ensure proper air circulation and even crisping. Season immediately after cooking for best adherence and flavor.