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Keto Onion Rings (Crisp, Savory, and Actually Low-Carb)
Isla Marie

Keto Onion Rings

Crispy, low-carb onion rings made with an almond flour and Parmesan coating. Crunchy on the outside, tender inside, and designed to stay crisp without breadcrumbs.
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Prep Time 15 minutes
Cook Time 18 minutes
Total Time 33 minutes
Servings: 4
Course: Appetizer, Snack
Cuisine: American
Calories: 260
Ingredients Equipment Method Video Notes

Ingredients
  

  • 2 large yellow onions sliced into ½-inch rings
  • 1 cup almond flour
  • ½ cup finely grated Parmesan cheese
  • 2 large eggs
  • 1 teaspoon garlic powder
  • 1 teaspoon paprika
  • ¾ teaspoon salt
  • ½ teaspoon black pepper
  • Olive oil or avocado oil spray

Equipment

  • Mixing bowls
  • Baking sheet or air fryer basket
  • Parchment paper or cooking spray
  • Whisk
  • Tongs

Method
 

Step 1. Prepare the Onions
  1. Separate onion slices into individual rings and pat dry with paper towels.
Step 2. Mix the Coating
  1. In a bowl, combine almond flour, Parmesan, garlic powder, paprika, salt, and black pepper.
Step 3. Prepare the Egg Wash
  1. In a separate bowl, whisk eggs until smooth.
Step 4. Coat the Onion Rings
  1. Dip each onion ring into the egg wash, then press firmly into the almond flour mixture until evenly coated.
Step 5. Arrange for Cooking
  1. Place coated rings on a lined baking sheet or in an air fryer basket, leaving space between each. Lightly spray with oil.
Step 6. Cook Until Crispy
  1. Bake at 400°F for 15–18 minutes, flipping halfway, or air fry at 390°F for 8–10 minutes until golden and crisp.
Step 7. Rest and Serve
  1. Let onion rings rest for 2–3 minutes before serving to allow the coating to set.

Video

Notes

  • Thicker onion slices hold their shape better.
  • Do not overcrowd the pan or basket.
  • Parmesan is essential for browning and structure.
  • Reheat in the oven or air fryer to restore crispness.