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There’s a reason onion rings disappear first off any appetizer platter, and it’s all in the crunch. These homemade onion rings get their crunch from a light beer batter that clings to every ring, then fries up crispy and golden in just a couple of minutes per side. You’ll need sliced yellow onions, a simple flour-and-cornstarch batter, and 2 inches of hot oil. The result is a shatteringly crisp coating around a sweet, tender onion, best eaten hot off the rack with your favorite dipping sauce.
The first time I made onion rings from scratch, I used a plain flour batter and ended up with something closer to a soggy onion pancake. Total letdown after all that hot oil and cleanup. It took a few more tries (and a very patient family who ate a lot of mediocre onion rings) before I figured out what was actually missing. It’s the same trick I use in beer battered fish and fried green beans, so if this batter wins you over, those two are worth trying next. Great onion ring batter really comes down to two little things: getting the flour-to-cornstarch ratio right, and knowing exactly when to put the whisk down. Cornstarch is doing the real magic here. It’s what keeps the coating from turning doughy, so you end up with that light, crackly crunch instead of a heavy, bready shell.
I whisked up batches both over-mixed and just-combined to see if it actually mattered, and wow, it does. Overworking the batter builds gluten, and gluten is basically the enemy of crispy here, turning your coating tough and chewy once it hits the oil. So whisk in the beer just until the flour streaks disappear, then stop yourself. The batter should look a little lumpy, kind of like pancake batter, and that’s exactly what you want to see. Beer is pulling double duty in this recipe. The carbonation puffs up the coating as it fries, and a light lager keeps things clean-tasting so the onion still gets to be the star of the show. And if you need to skip alcohol, seltzer water is a straight-across swap that gives you the same crispy lift.
Tips for Beginners
- Don’t skip tossing the onions in flour before battering. That first dry coat of flour gives the wet batter something to grip. Skip it, and you’ll end up with bald patches where the batter slides right off in the oil.
- Watch your oil temperature like it matters, because it does. I tested this at 350°F and at 375°F, and 375°F was the clear winner. Any cooler, and the rings soak up oil and turn greasy before the coating sets. Use a thermometer instead of guessing; it’s the single biggest difference between soggy and crispy.
- Give the oil a break between batches. Frying drops the oil temperature fast, especially if you crowd the pan. Let it climb back to 375°F before adding the next batch, and check it again with your thermometer rather than eyeballing the bubbles.
Homemade Onion Rings
Ingredients
- Vegetable oil for frying
- 1¾ cups all-purpose flour divided
- ¼ cup cornstarch
- 1 tsp salt
- ½ tsp baking powder
- ½ tsp onion powder
- ½ tsp garlic powder
- ½ tsp paprika
- 1½ cups beer
- 2 medium yellow onions sliced into rings
Instructions
- Heat 2 inches of oil in a large skillet or pot to 375°F.Vegetable oil for frying
- In a bowl, toss the onion rings with ¼ cup flour.1¾ cups all-purpose flour, 2 medium yellow onions
- In another bowl, combine 1½ cups flour, cornstarch, salt, baking powder, onion powder, garlic powder, paprika, and pepper.¼ cup cornstarch, 1 tsp salt, ½ tsp baking powder, ½ tsp onion powder, ½ tsp garlic powder, ½ tsp paprika
- Gradually pour in the beer while whisking to combine into a smooth batter.1½ cups beer
- Ensure the temperature of the oil is 375°F. Dip each onion slice in the batter until fully coated, letting the excess liquid drip off.
- Working in batches, gently drop the onion slices into the oil. Fry for a couple minutes on each side until crispy and golden brown. Transfer to wire rack and immediately sprinkle with salt.
- Serve with your favorite dipping sauce.
Equipment
- 1 large skillet
Becky’s Tips
- Use a thermometer, not a guess. 375°F is the line between crispy and greasy.
- Don’t crowd the pan. Fry in small batches, about 2 minutes per side, and let the oil recover between rounds.
- Whisk just until combined. Overmixing builds gluten and turns the coating chewy.
- Salt the rings the second they leave the oil, while the coating’s still hot enough for it to stick.
- Seltzer water swaps in for beer, same amount, for a non-alcoholic version.
- Swap in sweet Vidalia onions for a milder ring with less bite.
- Leftovers keep in the fridge for up to 2 days, but reheat in the oven or air fryer, not the microwave, to bring the crunch back.
Nutrition information is automatically calculated, so should only be used as an approximation.
Did you make this? Leave a comment!
How to Make Homemade Onion Rings Step by Step
Gather the ingredients: Gather all the ingredients together. Pour 2 inches of vegetable oil into a large skillet or heavy pot and heat it to 375°F. Use a thermometer here. This is the temperature that keeps the coating crisp instead of greasy.
Dredge the onions: In a bowl, toss the onion rings with ¼ cup flour until every ring is lightly and evenly coated. This dry layer helps the wet batter stick.
Mix the dry ingredients: In a separate bowl, whisk together the remaining 1½ cups flour, ¼ cup cornstarch, 1 tsp salt, ½ tsp baking powder, ½ tsp onion powder, ½ tsp garlic powder, ½ tsp paprika, and ¼ tsp pepper.
Add the beer: Pour in the 1½ cups beer gradually while whisking. Stop as soon as the batter comes together with no visible flour streaks. It should look loose and slightly lumpy, similar to pancake batter. Overmixing here is the one thing that will make your coating tough, so resist the urge to whisk it smooth.
Coat the onions: Dip each floured onion ring into the batter, turning to coat all sides, then lift it out and let the excess batter drip back into the bowl for a second or two.
Fry in batches: Check that your oil has come back up to 375°F. Gently lower the coated rings into the hot oil, a few at a time so you don’t crowd the pan. Fry for about 2 minutes per side, until the coating is deep golden brown and sounds crackly when you tap it.
Drain and salt: Transfer to a wire rack and sprinkle with salt immediately, while the coating is still hot enough for the salt to stick.
Serve: Serve the onion rings hot, straight off the rack, with your favorite dipping sauce.
How to Store and Reheat
Store leftover onion rings in an airtight container lined with a paper towel for up to 2 days. The coating will soften somewhat in the fridge, but reheating brings back most of the crunch.
Freezer
Cool the fried onion rings completely, then freeze them in a single layer on a baking sheet until solid, about 1 hour. Transfer to a freezer bag or airtight container and freeze for up to 2 months. Freezing raw battered onions isn’t recommended, as the coating can turn soggy once thawed.
Reheating
For the best texture, reheat in an air fryer or a 400°F oven for 5 to 8 minutes, until hot and crisp again. The microwave will heat them through but leaves the coating soft and chewy, so it’s a last resort.
Make Ahead
You can slice the onions and mix the dry batter ingredients up to a day ahead. Store the sliced onions in the fridge and keep the dry mix in an airtight container at room temperature. Wait to add the beer until right before frying, since a rested wet batter loses some of its lift.
Serving Suggestions
My favorite way to eat these is stacked right on top of a burger, where the crispy rings do double duty as a side and a topping. I love piling them onto my smash burgers, since that crispy edge on the patty and the crunch of the onion ring are honestly a dream together. For dipping, my fry sauce is the one I reach for most. Its tangy-sweet kick plays so well against the malty batter, though a cool homemade ranch dressing works beautifully too if you want something milder.
And when I want to lighten things up a bit, I’ll serve these next to my tri-color pasta salad. Its vinegary dressing cuts right through the richness of the fried coating.
More Crispy Fried Appetizers
- Ranch Fried Pickles: These use the same 2-inch, 375°F fry setup as the onion rings, so if you’ve already got the oil hot, it’s easy to fry up both for one big appetizer spread.
- Fried Mozzarella Sticks: Another crispy, golden fried favorite that disappears fast at parties, this one’s great for rounding out a sampler plate next to the onion rings.
- Baked Blooming Onion: If you’re an onion person like me, this one scratches the same itch with a totally different technique, no deep fryer required.
- Jalapeño Poppers: These bring a little heat to the same game-day lineup, and the creamy filling is a nice contrast to the crunchy onion rings.
