This homemade Gluten-Free Crispy Onion Strings recipe is baked, not fried! Made with white rice flour, dairy-free buttermilk, and spices, they make a great topping and easy appetizer! Dairy-free and vegan.
Preheat the oven to 400 degrees Fahrenheit. Line two large baking trays with parchment paper.
Carefully use a sharp knife or mandolin slicer to slice onion into ¼ inch slices.
In a medium bowl, combine milk and apple cider vinegar. In a separate medium shallow bowl, add white rice flour, salt, pepper, smoked paprika, and garlic powder, whisking to combine.
In batches, drop onion slices into buttermilk mixture to coat. Transfer onions to the rice flour mixture and dredge to coat. Give onions a slight shake to remove excess coating, then place the into an even layer onto prepared baking sheet. Spray onions with cooking spray.
Place baking sheets in oven and bake for 18-20 minutes. Remove from oven halfway through baking and flip onions with a spatula. Spray with additional cooking spray and return to oven. Thinner or shorter strings will bake up more quickly, so keep a close eye on them in the last few minutes. Add a couple extra minutes if necessary.
Allow gluten-free onion strings to cool for 1-2 minutes before transferring them to a serving plate.
Air Fryer Onion Strings
Preheat the air fryer to 390 degrees Fahrenheit.
Prepare onion slices according to instructions above.
Spray the fryer basket with cooking spray and place onion slices in an even layer. (May have to do this in small batches.) Spray onions with cooking spray.
Cook for 8 minutes, flipping onions halfway through and spraying with additional cooking spray.
Notes
Serving suggestions: Serve these with your favorite dipping sauce or use as a topping for casseroles, mashed potatoes, burgers, hot dogs, sandwiches, soups, and salads.To store: Once the oven-baked onion straws have cooled, store them in an airtight container at room temperature for 2-3 days.To reheat: Preheat the oven to 350 degrees Fahrenheit. Place leftover fried onions on a parchment or foiled lined baking sheet. Heat for 5-7 minutes or until warm.