Sweetgreen-Style Ripple Fries are homemade waffle-cut fries made in an air fryer using russet potatoes, avocado oil, and cornstarch for an ultra-crispy exterior without deep frying. Soaking and a cornstarch coating deliver the signature crunch of the restaurant version.
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Start by washing your potatoes, scrubbing them well. Keep the skins on for an authentic copycat, or peel them if preferred.
Slice the potatoes using a crinkle cutter into pieces just a little under 1/4 inch thick. Place the slices in a bowl of cold water and let them soak for at least 20 to 30 minutes — this helps make them extra crispy. After soaking, drain and pat them completely dry with a clean towel.
Toss the potato slices with avocado oil, cornstarch, salt, and black pepper until everything is evenly coated.
Preheat your air fryer to 375°F and add the fries in a single layer, preferably on a wire rack so air can circulate. This will depend on the style of air fryer you have.
Air fry for 20 to 25 minutes, flipping halfway through. Spray with a little more avocado oil while they cook if needed, until golden brown and crisp.
Serve hot with your favorite dipping sauce!
Store leftover fries in an airtight container for up to 2 days; reheat in the air fryer at 350°F for 3–5 minutes to restore crispness.
air fryer · crinkle cutter · wire rack (recommended for air-fryer basket)
Soaking for 20–30 minutes removes excess starch, allowing the exterior to crisp more effectively during air frying while keeping the inside tender.
Russet potatoes are ideal for their starch content and texture. Yukon golds will work but won't crisp as much; avoid waxy potatoes like red or fingerlings.
Air fry at 375°F for 20–25 minutes, flipping halfway through. Cooking time varies by air-fryer model and batch size; check for golden-brown color and crispness.
Cook fresh for best crispness. Leftovers can be stored in an airtight container for up to 2 days and reheated in a 350°F air fryer for 3–5 minutes.
Cornstarch absorbs moisture and promotes browning, creating an extra-crispy exterior without deep frying.
