Prep the radishes: Rinse and dry the radishes well.
Trim the ends, then slice thinly—about 1/16 to 1/8 inch thick. A mandoline helps keep slices even and ensures crisp results.
Remove excess moisture: Lay the slices on a clean kitchen towel or paper towels. Blot well to remove surface moisture.
This step helps the chips crisp instead of steam.
Season: In a bowl, toss the radish slices with olive oil, salt, pepper, and any optional seasonings like garlic powder or smoked paprika. Coat evenly but lightly.
Preheat the air fryer: Set it to 350°F (175°C) for 3–5 minutes. A warm basket improves crisping.
Arrange in a single layer: Place radish slices in the basket without overlapping.
Work in batches if needed. Crowding leads to soggy chips.
Air fry: Cook at 350°F (175°C) for 8–12 minutes, shaking the basket or flipping slices halfway. Start checking at minute 7.
Chips should be lightly golden at the edges and feel firm.
Final crisp: If needed, drop the temp to 325°F (165°C) and cook 2–3 more minutes to dry them out without over-browning.
Season and cool: Transfer to a wire rack. If you like, sprinkle a few drops of apple cider vinegar or extra salt while warm. Let them cool completely; they crisp further as they cool.
Serve: Enjoy plain, or pair with dips like Greek yogurt ranch, spicy mayo, or hummus.