Crispy Keto Onion Ring Chips with Parmesan (Baked or Air Fryer!)

If you've seen those viral parmesan onion ring chips on TikTok and wondered if they're worth the hype - good news: they are.

This low-carb, keto-friendly version is ultra crispy, baked (or air-fried), and made with just a few simple ingredients like onions, parmesan cheese, and a touch of seasoning.

Whether you call them onion parmesan crisps, keto onion chips, or sheet pan onion rings with parmesan cheese, one thing's certain - they're addictively crunchy, surprisingly satisfying, and incredibly easy to make. No breadcrumbs, no frying oil, just the magical combo of sweet onions and sharp cheese melted into crispy perfection.

Perfect as a snack, game day app, or side dish, these garlic parmesan onion crisps are ready in minutes and store well in an airtight container for those salty cravings that hit next time.

My personal journey led me to try these Crispy Cheesy Parmesan Onion Ring Chips-a delicious way to enjoy all the flavor and crunch of classic onion rings without the deep fryer or the carb count!

📌 Save These Crispy Keto Onion Ring Chips for Later on Pinterest!

Crispy Cheesy Parmesan Onion Ring Chips - The Viral Snack Taking Over TikTok!

 Inspired by Dad's Diner nostalgia and the viral food trends sweeping TikTok, these Crispy Cheesy Parmesan Onion Ring Chips are the perfect alternative to French fries and even those crispy Parmesan potato chips everyone's raving about.

Made with just a large onion, shredded Parmesan, and a sprinkle of garlic powder, these onion discs turn into the ideal chip-cheesy, crispy, and packed with flavor.

The secret? Slice your white onions into ¼ inch rounds, carefully using a cut-resistant glove, then coat them in your own Parmesan cheese mixture.

Arrange them in a single layer on a baking sheet lined with parchment paper, pop them in the oven (or try one of those air fryers everyone loves), and watch them transform into the crispiest, cheesiest snack ever!

Perfect for those embracing the ketogenic lifestyle or just looking for an easy onion ring recipe, these chips pair beautifully with an equally delicious dip-think a creamy combination of mayo and your favorite keto products.

Whether you're deep into your health journey or just love a crunchy snack when hungry happens, these onion slices will become your new obsession. Just try not to use too much cheese-unless, of course, you're like me and believe there's no such thing!

If you love fun healthy dessert recipes make sure you try my Chocolate Avocado Milkshake, Paleo Snickerdoodles, Chocolate Chip Oatmeal Cookies, Air Fryer Chocolate Cake and my most popular 3 Ingredient Muffins.

Why I Love this Recipe...

You only need 3 ingredients and they are delicious!!

Weight Watcher Friendly - These Low Carb Keto friendly Onion Rings Crisps are only 2 WW points for one Onion Chip.

Since the new Weight Watchers plan is personalized you will have to input the ingredients used into your WW app to get your exact WW personal points.

Easy to Make - Preparing this keto onion crisp recipe requires only 3 simple ingredients. With just a large onion, parmesan cheese, and your favorite seasoning (like garlic powder or smoked paprika), you can whip up delicious, golden brown onion crisps in minutes-no messy batter or deep frying needed! Just bake or air fry them in a single layer for the perfect light, crispy snack that pairs amazingly with an equally delicious dip like garlic aioli or spicy mayo.

A Guilt-Free Crunch Without the Carbs - Traditional onion rings are deep-fried and coated in carb-heavy batter, but these crispy parmesan onion ring chips give you that irresistible crunch without the carb overload! By using shredded parmesan instead of breadcrumbs, you get a savory, cheesy crisp that's perfect for low-carb and keto lifestyles.

Ingredients

Onion - We used one large white onion sliced thinly. You can use red onions, yellow onions or even other veggies like zucchini slices or sliced mushrooms.

Seasonings - You can customize these Crispy Parmesan Onion Ring Chips with a variety of seasonings to match your taste! Here are some delicious seasoning ideas:

Classic & Savory:

✔ Garlic powder - enhances the umami flavor
✔ Onion powder - doubles up on that oniony goodness
✔ Smoked paprika - adds a mild smoky kick
✔ Black pepper - balances the richness of the cheese
✔ Ranch seasoning - a flavorful, herby touch

Spicy & Bold:

🔥 Cayenne pepper - for a bit of heat
🔥 Chili powder - adds a deep, smoky spice
🔥 Buffalo seasoning - perfect if you love tangy heat
🔥 Chipotle powder - a smoky, spicy boost

Herby & Aromatic:

🌿 Italian seasoning - gives it a subtle herb blend
🌿 Thyme or oregano - pairs beautifully with parmesan
🌿 Rosemary (finely chopped) - for an earthy depth

Unique Twists:

🧀 Everything bagel seasoning - adds crunch & flavor
🧀 Nutritional yeast - for a cheesier, slightly nutty taste
🧀 Lemon zest - a bright, fresh touch

Here are some delicious dip pairings to take your Crispy Parmesan Onion Ring Chips to the next level!

Classic & Creamy Dips:

🥣 Garlic Aioli - A smooth blend of mayo, garlic, and lemon juice
🥣 Ranch Dressing - A cool, herby favorite
🥣 Sour Cream & Chive - Light, tangy, and packed with flavor
🥣 Greek Yogurt Dip - Mix Greek yogurt with lemon, garlic, and herbs for a healthy twist

Spicy & Zesty Dips:

🔥 Buffalo Mayo - Spicy buffalo sauce mixed with mayo or Greek yogurt
🔥 Chipotle Ranch - A smoky, spicy version of classic ranch
🔥 Sriracha Lime Mayo - Creamy with a touch of heat
🔥 Honey Mustard - Sweet and tangy contrast to the salty crunch

Cheesy & Savory Dips:

🧀 Queso Dip - Warm, gooey cheese sauce for extra indulgence
🧀 Parmesan Peppercorn Dip - Bold and tangy with extra cheese flavor
🧀 Bacon Cheddar Dip - Loaded with crispy bacon and melty cheddar

Fresh & Zesty Dips:

🍋 Avocado Crema - Blended avocado, lime juice, and sour cream
🍋 Lemon Dill Yogurt Dip - Refreshing and light
🍋 Tzatziki - Classic Greek yogurt, cucumber, and garlic dip

Grab Your Free 2026 Healthy Meal Planner

If you're ready to make healthy eating easier and more intentional, I created something just for you. My Free 2026 Healthy Meal Planner will help you map out weekly meals, stay organized, reduce stress, and build simple habits that actually stick. Whether you're trying to save time, eat cleaner, lose weight, or just feel more in control of your routine, this planner gives you the structure and support to make it happen.

Click the button below, enter your email, and your free planner will be sent straight to your inbox.
Here's to feeling nourished, organized, and confident all year long. 🥗✨

Best Kitchen Tool

How to Make Crispy Cheesy Parmesan Onion Ring Chips

1: Preheat & Prep: Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper to prevent sticking.

2: Slice the Onion: Using a knife or mandolin, slice the large white onion into thin rings (about ¼-inch rounds). For safety, use a cut-resistant glove if using a mandolin.

3: Layer the Cheese & Onion: Sprinkle a generous layer of shredded parmesan cheese evenly onto the parchment-lined baking sheet.

4: Add Onion Slices: Arrange the onion slices in a single layer on top of the cheese. Make sure they are slightly spaced apart to allow even crisping.

5: Season & Top with More Cheese: Sprinkle the ranch seasoning (or your preferred seasoning) over the onions, then add another layer of shredded parmesan cheese on top.

6: Bake to Perfection: Place the sheet in the preheated oven and bake for 15-18 minutes, or until the cheese is melted and turns a golden brown crisp.

7: Cool & Slice: Remove from the oven and let the onion crisps cool completely. Once set, carefully slice into chips or break apart into crispy bites.

8: Enjoy! Serve immediately with your favorite dip or enjoy as a low-carb, crunchy snack on its own!

Watch the How to Make Onion Crisps Video Here...

Air Fryer Variation - Crispy Parmesan Onion Ring Chips

If you prefer to make these crispy onion ring chips in the air fryer, follow these simple steps:

1: Preheat the Air Fryer: Set your air fryer to 375°F (190°C) and line the basket with parchment paper or a perforated air fryer liner to prevent sticking.

2: Prepare the Onion Slices: Slice a large white onion into thin rings (about ¼-inch rounds) using a knife or mandolin.

3: Layer the Cheese & Onion: Sprinkle shredded parmesan cheese directly onto the parchment paper in the air fryer basket. Arrange the onion slices in a single layer on top of the cheese, ensuring they don't overlap.

4: Season & Add More Cheese: Sprinkle the ranch seasoning (or your preferred seasoning), then top with another layer of parmesan cheese for extra crispiness.

5: Air Fry to Perfection: Cook at 375°F for 8-10 minutes, checking around minute 7 to ensure they aren't over-browning. Cook until the cheese is melted and turns golden brown and crispy.

6: Cool & Slice: Let the onion crisps cool for a few minutes before carefully slicing them into chips or breaking them apart into bite-sized pieces.

7: Enjoy! Serve immediately with your favorite dip or eat them as a low-carb, crunchy snack straight from the basket!

Expert Tips

1️⃣ Use Fresh, Firm Onions - Choose large white onions with a firm texture for the best crispy chips. Softer onions can release too much moisture, making them soggy.

2️⃣ Slice Evenly for Consistent Crispiness - Use a sharp knife or mandolin to slice ¼-inch rounds evenly. This ensures they cook at the same rate. Wear a cut-resistant glove for safety when using a mandolin.

3️⃣ Pat Dry for Extra Crispiness - Before layering, pat the onion slices dry with a paper towel. This removes excess moisture and helps them crisp up better.

4️⃣ Shred Your Own Parmesan - Pre-shredded parmesan contains anti-caking agents that can prevent proper melting. Freshly shredded parmesan creates a more even, crispy texture.

5️⃣ Season Between Layers - To get maximum flavor, sprinkle seasonings like garlic powder, smoked paprika, or ranch seasoning between the layers of parmesan cheese and onions.

6️⃣ Bake on Parchment Paper - This prevents sticking and allows the cheese to crisp up properly without burning. A silicone baking mat also works well.

7️⃣ Let Them Cool Completely - Once out of the oven, let the chips cool on the pan for 5-10 minutes. This helps them set and get that perfect crunch.

8️⃣ Best Storage Method - Store leftover onion ring chips in an airtight container at room temperature for up to 2 days or in the fridge for up to 5 days. Use parchment paper between layers to prevent sticking.

9️⃣ Reheating for Crispiness -
🔥 Oven: Preheat to 350°F and bake for 5 minutes.
🔥 Air Fryer: Reheat at 350°F for 3-4 minutes.
🔥 Skillet: Heat over medium heat for a quick crisp refresh.
(⚠ Avoid microwaving, as it makes them soft.)

🔟 Experiment with Cheese Blends - While parmesan is ideal, you can mix in asiago, pecorino romano, or cheddarfor different flavors. Just keep the parmesan as the base for the best crisp!

Trouble Shooting Guide

1️⃣ Chips Turn Out Soggy
❌ Problem: Too much moisture from the onions or cheese.
✅ Fix:

• Pat the onion slices dry with a paper towel before assembling.
• Use freshly shredded parmesan instead of pre-shredded (which contains anti-caking agents that prevent crisping).
• Let them cool completely after baking to allow them to set properly.

2️⃣ Cheese Burns Before Onions Are Done
❌ Problem: Oven temperature is too high or onions are too thick.
✅ Fix:

• Keep the oven at 400°F (if your oven runs hot, lower it to 375°F).
• Slice onions into even ¼-inch rounds so they cook at the same rate.
• Use parchment paper or a silicone baking mat to prevent over-browning.

3️⃣ Chips Stick to the Pan
❌ Problem: No parchment paper or not enough cheese underneath.
✅ Fix:

• Always line your baking sheet with parchment paper.
• Sprinkle a good base layer of parmesan before placing the onions so they don't stick.

4️⃣ Chips Don't Get Crispy Enough
❌ Problem: Not enough cheese or baked at the wrong temp.
✅ Fix:

• Use enough parmesan to form a solid base for crisping.
• Make sure to bake in a single layer, giving space between the onions.
• If they are still soft, bake for 2-3 extra minutes or pop them in the air fryer for 2 minutes at 375°F.

5️⃣ Seasoning Falls Off
❌ Problem: Sprinkling seasoning only on top.
✅ Fix:

• Layer the seasoning between the cheese and onions for even flavor.
• Lightly press seasonings into the parmesan before baking.

6️⃣ Chips Don't Reheat Well
❌ Problem: Using the microwave.
✅ Fix:

• Best method: Reheat in the air fryer (350°F for 3-4 min) or oven (350°F for 5 min) to restore crispiness.
• If using a skillet, heat on medium-low without oil until crispy again.

7️⃣ Onions Separate from the Cheese
❌ Problem: Not enough cheese to hold them together.
✅ Fix:

• Make sure you have a layer of cheese under and over the onion slices.
• Let them cool completely before handling to allow them to set properly.

8️⃣ Too Salty
❌ Problem: Parmesan and seasoning blend both contain salt.
✅ Fix:

• Use unsalted or low-sodium parmesan if needed.
• If using ranch seasoning, cut back on added salt.

9️⃣ Onions Are Too Strong in Flavor
❌ Problem: Raw white onions can have a sharp taste.
✅ Fix:

• Use sweet onions instead of white onions for a milder flavor.
• Soak onion slices in cold water for 10 minutes, then pat dry before baking.

🔟 Not Enough Crunch?
❌ Problem: Cheese blend isn't crispy enough.
✅ Fix:

• Stick with 100% parmesan as the base cheese.
• If adding cheddar, asiago, or romano, use a 50/50 blend to keep crispiness.
• Let them cool on a wire rack for extra airflow.

Are you a Weight Watcher?

If you follow my Blog you probably already know I am a lifetime member of Weight Watchers and I like to point all of my Recipes with the WW Points System.

This Weight Watchers friendly onion ring recipe is 2 Points on my Weight Watchers points app for one delicious onion crisp.

Weight Watchers has a new individualized program right now to make it easier to enjoy the foods you love and still lose weight.

Just plug the ingredients into your WW app to confirm the points for your individual program.

Grab your FREE Keto Quickstart Salads and Dressings E-Book Here...

If you want to see the old Purple, Blue and Green WW Food Lists for each plan just click Here… For a list of the 2025/26 Free WW Food list click here..

Make sure you check out my Newbie WW Tips and Tricks Guide if you are just getting started.

I used to go back and forth between the old Purple Plan and the old Blue Plan prior to the new program and whenever I hit a plateau I did my own 30 Day Low Carb Meal Plan which jumpstarts the Fat Burning again, so if you feel stuck try it!

.

If you are impatient like me... blog visitors can get instant access to the digital download version today for only $8.97 just click here...

Print

REDUCE BELLY FAT WITH HEALTHY MUFFINS - GRAB A COPY OF MY LATEST COOKBOOK ON AMAZON ...

If you are impatient like me... blog visitors can get instant access to the digital download version of The Healthy Muffin Cookbook today for only $9.97 just click HERE...

Make sure you subscribe to my Youtube Channel so you don't miss a video HERE❤️