2largeonionscut into 1/4-inch thick slices and separated into rings
fine saltto taste
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Instructions
Heat the oil
Heat 2 cups vegetable oil in a deep fryer or large saucepan to 350°F (175°C), and keep a thermometer clipped to the pot so the temperature does not drift.
Mix the batter and set up the breading station
In a large bowl, whisk together flour, cornstarch, potato flakes, and cayenne pepper until the dry mix looks uniform.
Whisk in the chilled club soda until you have a smooth batter, then pour the panko bread crumbs into a separate shallow pan.
Coat the onion rings
Working in batches, dip onion rings into the batter, then press in bread crumbs to coat.
Fry, drain, and season
Cook coated onion rings, a few at a time, in hot oil until golden brown, 2 to 3 minutes, keeping the pan uncrowded so the oil stays hot.
Transfer to a cooling rack set over paper towels to drain, then season immediately with fine salt while the surface is still shimmering.
Notes
For the extra-crispy twist mentioned in the article, replace 1/4 of the club soda with chilled vodka, then whisk it in the same way.Nutrition information is estimated based on common ingredients and serving sizes and may vary.