Classic Beer-Battered Onion Rings
Crisp, airy onion rings are made by dredging thick slices of onion in a light, carbonated batter and frying them immediately in hot oil. The key is to keep the batter ice-cold and the oil steady at 375°F to ensure the crust sets before the onion turns to mush.
Temperature control is your only challenge here.
If your batter is warm or your oil drops below 350°F, you will end up with greasy, heavy rings instead of light, shattered-glass crusts.
- Heavy-bottomed pot or Dutch oven
- Candy or deep-fry thermometer
- Wire cooling rack
- Whisk
- Tongs
What goes in.
- 2 largeYellow onions, cut into 1/2-inch thick rounds
- 1 cupAll-purpose flour, plus more for dredging
- 1/2 cupCornstarch
- 1 tspBaking powder
- 1 tspKosher salt
- 1 cupIce-cold lager or pilsner
- 1 quartNeutral oil with high smoke point, such as grapeseed or canola
Maintaining the Fizz
Use a beer straight from the freezer to keep the batter temperature low. The cold liquid prevents the gluten from over-developing, keeping the crust crisp rather than chewy.
The method.
Prep the onions
Separate the onion slices into individual rings. Toss them lightly in a shallow bowl of plain flour and shake off the excess. This dry layer acts as a primer for the batter to stick.
Mix the batter
Whisk the flour, cornstarch, baking powder, and salt in a bowl. Pour in the cold beer and whisk just until combined. It should be the consistency of thin pancake batter; ignore the small lumps.
Heat the oil
Fill your pot with at least 3 inches of oil. Heat it over medium-high until your thermometer reads exactly 375°F.
Fry in batches
Dip a few rings into the batter, let the excess drip off for a second, and carefully lower them into the oil. Do not crowd the pot. Fry for about 2 minutes, turning once, until the batter is deep golden brown.
Drain and serve
Lift the rings with tongs and set them on a wire rack over a tray. Season immediately with a fresh dusting of salt while the oil is still glistening.
Other turns to take.
Spiced Batter
Add a teaspoon of smoked paprika or cayenne pepper to the dry flour mixture for a subtle heat.
Buttermilk Swap
For a thicker, more opaque crust, replace half the beer with cold buttermilk, though you will lose some of the signature 'shatter' texture.
When it doesn't go to plan.
Discard the smallest inner onion rings; they don't fry well and often end up burnt.
If the batter starts looking too thick as it sits, whisk in a tablespoon of ice water.
Use a wire rack rather than paper towels to drain the rings so the undersides stay crisp.
The ones that keep coming up.
Why is my batter sliding off the onion?
The onions were likely damp before you dredged them in the initial flour. Ensure they are bone-dry before coating.
Can I use non-alcoholic beer?
Yes, as long as it is highly carbonated. The bubbles provide the lift in the batter.
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