Onion Rings Recipe

Slice and separate

Peel the onions and slice into 1/4- to 1/2-inch thick rings. Gently separate rings from each slice into individual circles, discarding the small inner rings if they break — reserve for another use (minced into a dip or batter).

Soak for crispness

Place the separated rings in a large bowl of cold water and refrigerate for 20–30 minutes. This helps remove some sulfur and firms the rings for better frying. After soaking, drain and pat thoroughly dry with paper towels or a clean kitchen towel.

Prepare dry mix

In a medium bowl, whisk together 1 cup all-purpose flour, 1/4 cup cornstarch, 1 tsp baking powder, 1 tsp fine salt, 1/2 tsp sugar, 1/2 tsp black pepper, and 1/2 tsp paprika. Stir in 2 tablespoons fine cornmeal if using for extra crunch.

Make wet batter

In a separate bowl, lightly beat 1 large egg. Add 1 cup cold sparkling water and 2 tablespoons milk (optional) and whisk until combined. Cold sparkling water gives a lighter, airy batter.

Combine to batter

Pour the wet mixture into the dry mix and whisk just until combined. Do not overmix; it’s okay if a few small lumps remain. The batter should coat the back of a spoon but still be fluid. If it's too thick, add 1 tablespoon more cold water at a time to reach desired consistency.

Prepare dredge and crumbs

Place 1/2 cup all-purpose flour in a shallow dish for dredging. Place 1 cup panko breadcrumbs in a separate shallow dish. For an extra-crisp double-coating, you’ll first dredge rings in flour, dip in batter, then press into panko.

Heat oil

Pour enough vegetable oil into a deep skillet or Dutch oven to reach about 2 inches deep (approximately 1–2 cups depending on pan). Heat over medium-high until oil reaches 350°F (175°C). If you don’t have a thermometer, test by dropping a small pinch of batter — it should sizzle and rise steadily.

Dredge, batter, and coat

Working in small batches (4–6 rings depending on pan size), lightly dredge each dry onion ring in flour, shake off excess, dip into the batter allowing excess to drip back into the bowl, then press into the panko breadcrumbs to coat both sides. For a thicker crust, repeat the dip in batter and press into panko a second time.

Fry until golden

Carefully lower coated rings into hot oil in a single layer, avoiding overcrowding. Fry for 2.5–3.5 minutes, turning once with tongs or a slotted spoon, until crisp and golden brown. Monitor oil temperature and adjust heat to keep it between 325–350°F (160–175°C).

Drain and salt

Use a slotted spoon or spider to remove rings and transfer to a wire rack set over a baking sheet or paper towels. Immediately sprinkle with 1 tsp fine salt while still hot so it adheres. Keep cooked rings warm in a 200°F (95°C) oven on a baking sheet if frying additional batches.

While the onions fry, whisk together 1/2 cup mayonnaise, 2 tablespoons ketchup, 1 teaspoon hot sauce, 1/4 teaspoon smoked paprika, 1 teaspoon fresh lemon juice, and 1/8 teaspoon salt in a small bowl. Adjust seasoning to taste and chill until serving.

Serve onion rings hot and crisp with lemon wedges and the prepared dipping sauce. Best enjoyed immediately.