Onion Rings Recipe

Slice and separate

Peel the onions and slice into 1/4- to 1/2-inch thick rings. Gently separate rings and set aside. For very large onions, cut rounds in half to yield manageable rings.

If you prefer milder onion flavor, soak the rings in cold water for 10 minutes, then drain and pat dry thoroughly with paper towels. Drying well helps batter adhere and prevents oil splatter.

Make dry mix

In a medium bowl, whisk together 1 cup all-purpose flour, 1/4 cup cornstarch, 1 tsp baking powder, 1/2 tsp sea salt, 1/4 tsp black pepper, and 1/2 tsp paprika until evenly combined.

Prepare wet batter

In a separate bowl, lightly beat 1 large egg. Add 3/4 cup cold sparkling water and whisk to combine. Cold sparkling water keeps the batter light and crispy.

Combine to form batter

Make a well in the dry mix and pour in the wet mixture. Stir gently with a fork or whisk until just combined — it's okay if a few small lumps remain. The batter should be thick enough to coat a spoon but still flow; if too thick, add up to 2 tablespoons more sparkling water.

Prepare dredge and optional crumb

Place 1/2 cup all-purpose flour in a shallow dish for dredging. If using breadcrumbs for extra crunch, put 1/2 cup fine breadcrumbs or panko in a separate shallow dish.

Heat oil

Pour about 1 to 1 1/2 cups neutral oil into a heavy skillet or Dutch oven to a depth of about 1 inch (enough for shallow frying). Heat oil over medium-high heat until it reaches 350°F (175°C). If you don't have a thermometer, test by dropping a small bit of batter into the oil; it should sizzle and rise to the surface within a few seconds.

Dredge and batter

Working in batches (4–6 rings at a time, depending on pan size), lightly dredge each onion ring in the dredging flour, shaking off excess. Dip the floured ring into the batter, letting excess drip back into the bowl. If using breadcrumbs, immediately press the battered ring into the breadcrumbs so they adhere, or you may skip breadcrumbs for a classic tempura-style ring.

Fry the rings

Carefully place battered rings into the hot oil, avoiding overcrowding. Fry 2–3 minutes per side, turning once with tongs or a slotted spoon, until golden brown and crisp. Maintain oil temperature around 325–350°F; if it browns too quickly, reduce heat, if rings take too long to color, increase heat slightly.

Drain and season

Use a slotted spoon or tongs to transfer cooked rings to a wire rack set over a sheet pan or to paper towels to drain. Immediately sprinkle with a pinch of the finishing sea salt and a little freshly ground pepper while still hot. Repeat with remaining rings, replenishing oil as needed and allowing it to return to temperature between batches.

Once all rings are fried, give them a final light sprinkle of salt and pepper. Serve hot with lemon wedges on the side for squeezing, and with your favorite dipping sauce (ranch, ketchup, aioli). For best texture, serve immediately.

Leftovers can be kept in a single layer on a rack in a low oven (200°F / 95°C) for up to 30 minutes to stay crisp, or cooled and refrigerated and reheated in a 375°F (190°C) oven for 6–8 minutes.