# What You'll Need:
→ Vegetables
01 - 2 large yellow onions
→ Batter
02 - 1 cup all-purpose flour
03 - ½ cup cornstarch
04 - 1 teaspoon baking powder
05 - 1 teaspoon smoked paprika
06 - 1 teaspoon garlic powder
07 - 1 teaspoon salt
08 - ½ teaspoon freshly ground black pepper
→ Wet Ingredients
09 - 1 cup cold sparkling water
10 - 2 large eggs
→ Coating
11 - 2 cups panko breadcrumbs
→ For Frying
12 - Vegetable oil, for deep-frying
# Step-by-Step:
01 - Peel the onions and slice into ¾-inch thick rings. Separate the rings and set aside.
02 - In a large bowl, whisk together flour, cornstarch, baking powder, smoked paprika, garlic powder, salt, and black pepper.
03 - In a separate bowl, beat the eggs and cold sparkling water until well combined.
04 - Pour the wet ingredients into the dry ingredients and whisk until smooth. Add additional sparkling water if the batter is too thick.
05 - Place panko breadcrumbs in a shallow dish for dipping.
06 - Dip each onion ring into the batter, letting excess drip off, then coat thoroughly with panko breadcrumbs.
07 - Heat vegetable oil in a deep fryer or large heavy pot to 350°F. Fry the onion rings in batches for 2 to 3 minutes, turning occasionally, until golden and crispy. Drain on a wire rack or paper towels.
08 - Preheat air fryer to 400°F. Arrange coated rings in a single layer, spray lightly with oil. Air-fry for 8 to 10 minutes, turning halfway through, until golden and crisp.
09 - Stack the cooked onion rings into a tower on a serving platter. Serve immediately with preferred dipping sauces.