Burger buns are out, cheesy onion crisps are in! This Viral 2-Ingredient Onion Ring Chips recipe used as burger buns is a complete game changer. If you enjoy grilled onions in your burgers, you will love using these onion ring chips as a bun.
It's low-carb, gluten-free and a flavor alternative to traditional hamburger buns and I'll be sharing all the tips, variations and FAQ's to help you make it perfectly.
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Be sure to check out some of my other recipes like this Roasted Brussels Sprouts and Baked Chicken Thighs. For a tasty dessert, you need to try this Dubai Chocolate Pistachio Ice Cream made in the Ninja Creami.
What are 2-ingredient onion ring chips?
The 2-ingredient onion ring chips are thinly sliced onions baked with cheese until crispy. The recipe became popular on platforms like TikTok and Instagram and can be seen often while scrolling on social media.
The chips can be eaten with a dip and perfect for a crunchy snack. They are even better as a bun as it makes a perfect substitute when you want something flavorful while wanting to keep it low-carb. Plus, you get that grilled onion flavor that adds a nice touch to a burger.
Ingredients and tools needed
Ingredients
- 1 medium white onion, sliced into ¼-inch thick rounds
- 7 oz shredded Parmesan cheese
- ½ tablespoon olive oil
- Seasonings: paprika, salt, garlic powder
Tools
- Mandoline slicer or sharp knife
- Parchment paper-lined baking sheet
- Oven
Step by step instructions
Preperation
- Step 1: Slice the onions.
- Step 2: Remove moisture.
STEP 1: Preheat oven to 400°F (200°C), Use a mandoline or sharp knife to slice the onions into very thin rounds.
STEP 2: Layer the sliced onions between paper towels and press gently to remove excess moisture. Let sit for 5–10 minutes before assembling.
Assembly and Baking
- Step 3: Assemble the onions on the baking sheet.
- Step 4: Once cooled, cut into squares.
STEP 3: Layer shredded Parmesan on a parchment-lined sheet pan, top with onion slices, brush with olive oil, season with paprika, salt, and garlic powder, add more cheese, then bake at 400°F for 18–20 minutes until crispy and let cool 5–10 minutes to firm up.
STEP 4: Gently transfer the sheet of onion ring chips to a cutting board and cut into squares for dipping or use as a hamburger bun.
Assembling the burger
Choosing the patty
Choose a lean ground beef patty or opt for a turkey burger or make it vegetarian and use a plant-based alternative.
Suggested Toppings
Lettuce, tomato, pickles, bacon and your favorite condiments. We used a chipotle mayo sauce to top it off before adding the onion ring chip buns.
Recipe Tips
- Use freshly grated Parmesan for better crispiness and melting.
- Make sure to slice the onions uniformly for even cooking, and be careful not to slice your fingers if you are using a mandoline.
- Avoid overcrowding the sheet pan with too many onions, as you want to allow proper circulation for keeping things crispy.
Variations
- Cheese Swap: experiment with different hard cheeses like Asiago or Grano Padano.
- Give it a kick: add chili flakes, chipotle powder, hot paprika or your favorite seasonings like oregano and rosemary.
- Add More Veggies: try alternating onion with thin slices of zucchini, smashed broccoli or pickles.
Nutritional Information
Per 1 chip:
- Calories: 97
- Carbs: 4g
- Fat: 6g
- Fiber: 0g
- Sugar: 1g
- Protein: 6g
What to serve with onion ring chips?
Storage
- Store onion ring chips in an airtight container at room temperature for 2 days.
- Reheat in the oven for ultimate crispiness.
Common mistakes to avoid
I know you are smarter than this, but you never know some people:
- Don't use wax paper instead of parchment paper, not fun.
- If you slice the onions too thick it will result in undercooked centers.
- If you don't let the chips cool they may fall apart if you try to move them.
Frequently Asked Questions
Yes, but hard cheeses like Parmesan yield the crispiest results.
Absolutely! They’re low in carbs and high in fat, making them suitable for a keto diet.
Yes, line the air fryer with parchment paper and adjust the temperature to 375°F (190°C), cook for 8-10 minutes, checking for desired crispiness.
Tried this recipe? If so, please leave a comment and ⭐️⭐️⭐️⭐️⭐️ rating.
Recipe Card
Viral 2 Ingredient onion ring chips as burger buns
Equipment
Ingredients
- 1 medium medium white onion
- 4 oz shredded Parmesan cheese
- ½ tablespoon olive oil
- ¼ teaspoon paprika
- ¼ teaspoon salt
- ¼ teaspoon garlic powder
Instructions
- Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
- Thinly slice the onions using a mandoline or sharp knife.
- Pat the onion slices dry between paper towels to remove moisture.
- Sprinkle a thin, even layer of shredded Parmesan on the parchment.
- Add onion slices on top, brush with olive oil, season with paprika, salt, and garlic powder, then top with more Parmesan.
- Bake for 18–20 minutes until golden and crispy. Let cool 5–10 minutes before serving.
Notes
Nutritional Information
Nutrition info is estimated and varies by ingredients, measurements, and portions.
Nutrition
Food safety
- Cook to a minimum temperature of 165 °F (74 °C)
- Do not use the same utensils on cooked food, that previously touched raw meat
- Wash hands after touching raw meat
- Don't leave food sitting out at room temperature for extended periods
- Never leave cooked food unattended
- Use oils with high smoking point to avoid harmful compounds
- Always have good ventilation when using a gas stove
See more food guidelines
Denis says
Crispy, cheesy, and surprisingly sturdy, these onion ring chips make the perfect low-carb burger buns. I’ll never miss regular buns again!