The pot lid rattles and you know dinner is almost ready. That sound kinda builds excitement, right? You’ve got this comforting vibe going on in the kitchen, and that’s the kinda feeling that makes cooking worth it.

You sense that broth depth coming together inside the cooker. It’s like this secret hug the food gets before it hits your plate. You catch a whiff of onion sweetness mixing with that parmesan crunch, and your stomach starts doing flips.
Then, the tender pull is just around the corner. As the pressure build finishes, you know you’re about to dig into something crispy yet tender on the inside. The sealing ring did its job keeping all that goodness locked in tight. You’re ready for that first bite of these 2 ingredient crispy keto onion rings, no doubt.
Why This Recipe Works Every Single Time
- Simple ingredients mean less room for error, so you get the perfect crispy texture every time.
- Parmesan acts as the perfect crunchy coating without needing a bunch of flour or breadcrumbs.
- Pressure cooker helps your onion layers soften just right with that tender pull effect.
- Baking at high heat crisps up the coating and locks in flavors without drying out.
- Natural release lets the pressure calm down slowly so the rings stay intact and don’t get mushy.
- Quick prep means you’re spending more time enjoying your meal, less in the kitchen fussing.
Your Simple Ingredient Checklist
- 1 large onion – You want a sturdy onion that will hold up well when sliced into rings
- 1.5 cups (120 g) grated parmesan cheese – This packed cheese is gonna give you that crispy cheesy crust that’s just unbeatable
- Parchment paper – To line your baking sheet and keep cleanup simple
- Optional: A little salt and pepper to season your onion rings if you wanna jazz them up a bit
- Oven – Make sure you got it preheated to 400°F for that perfect crisp
- A shallow dish – For spreading out your parmesan cheese for easy dipping
- A sharp knife – So you can slice those onion rings nice and even at about ¼ inch thick
- A baking sheet – To bake those beauties until they’re golden and crispy
Your Complete Cooking Timeline
- Step 1 – Peel your onion and slice into about ¼-inch thick rings. You gotta separate the onion layers gently so they stay in perfect rings.
- Step 2 – Spread your grated parmesan cheese in a shallow dish. This is where you gonna dip your onion rings real quick to get that crispy crust.
- Step 3 – Dip each onion ring into the cheese, pressing gently so both sides get a nice coverage. Don’t rush it or the cheese won’t stick.
- Step 4 – Line a baking sheet with parchment paper. No guesswork here, it works real good to keep rings from sticking or burning.
- Step 5 – Place the coated onion rings in a single layer on the baking sheet. Give em space so they crisp up evenly.
- Step 6 – Bake at 400°F for 25-30 minutes. Flip halfway through so both sides get that scrumptious golden brown look.
- Step 7 – As your rings bake, you can hear that pot lid rattling from your pressure cooker nearby, signaling tender pull is happening with your broth depth inside.
- Step 8 – When time’s up, pull the rings out, let cool a bit before you bite in so they stay nice and crispy.

Time Savers That Actually Work
- Slice your onion right after peeling and get your parmesan dish ready so you can move quickly from one step to the next.
- Use packaged grated parmesan instead of grating fresh, it’s a solid shortcut with no big flavor loss.
- Prep your baking sheet with parchment before you start slicing onions to save time cleaning after.
- While your rings bake, use the pressure cooker for sides or a simple broth so your dinner’s ready all at once.
That First Bite Moment
You pick up a golden onion ring and instantly spot that crispy coating holding tight to the tender onion inside. The parmesan crunch is real and makes that first bite a total treat.
Then you feel the warm onion pull apart gentle and sweet, that tender pull you got from the pressure helping soften the layers just right. It’s not mushy, just perfectly tender.
The cheesy crust combines with the onion’s natural sweetness in a way that kinda bursts in your mouth, hitting savory and crunchy notes all at once.

You close your eyes for a bit, savoring each bite and feeling proud you pulled off a simple recipe with such a tasty payoff.
How to Store This for Later
- Room temperature – You can leave these onion rings out for a couple hours if you plan to gobble them up quick. Just place on a plate with a paper towel to keep the crisp.
- Refrigerate – Put the cooled rings in an airtight container and fridge for up to 3 days. Reheat in the oven or toaster oven to bring back crispiness.
- Freeze – For longer storage, flash freeze the rings on a baking sheet, then transfer to a freezer-safe bag. Bake from frozen at 400°F until crispy again.
What People Always Ask Me
- Can I use other cheeses instead of parmesan? Sure, but parmesan’s the best for crispiness and flavor. Others might get softer or less crunchy.
- Do I really need the pressure cooker? It helps get that perfect tender pull in your onions but you can skip it if you bake them longer; just expect a bit different texture.
- How thick should my onion rings be? About ¼ inch thick is ideal for cooking through and getting that crispy crust without sogginess.
- Can I add spices to the parmesan? Heck yeah, paprika or garlic powder can jazz up the flavor real good.
- Do I flip the rings while baking? Definitely, flipping halfway helps get even golden brown and crispy all around.
- What if my rings get soggy? Probably didn’t get that natural release in the pressure cooker or they were left too long out. Reheat in oven to crisp back up.
For recipes that pair well with these rings and more pressure cooker tips, be sure to check out our Pressure Cooker Cannoli Cheesecake Bars Recipe, Classic Homemade Orange Candy Recipe, and Hawaiian Roll French Toast Recipe posts for easy and tasty meal ideas.

2 Ingredient Crispy Keto Onion Rings
Equipment
- 1 Baking sheet lined with parchment paper
- 1 Shallow dish for parmesan dipping
- 1 Sharp knife to slice onion
Ingredients
Main Ingredients
- 1 large Onion
- 1.5 cups Grated parmesan cheese about 120g, packaged
Instructions
Instructions
- Peel your onion and slice into about ¼-inch thick rings. Separate the layers into individual rings.
- Spread grated parmesan cheese in a shallow dish for easy dipping.
- Dip each onion ring into the cheese, pressing gently to coat both sides.
- Line a baking sheet with parchment paper to prevent sticking.
- Place onion rings in a single layer on the sheet, spaced evenly.
- Bake at 400°F for 25–30 minutes, flipping halfway through for even crisping.
- Remove from oven and let cool slightly before serving.














