Bloomin' Onion-Style Crispy Battered Onion Rings

By AislePrompt Editorial · Published 2026-06-13 · Updated 2026-06-13

Thick-cut onion rings coated in a seasoned batter and fried to a golden crisp, perfect for dipping or as a side. This Australian-inspired recipe (vegetarian), ready in about 30 minutes, turns large sweet onion, all-purpose flour, cornstarch into a satisfying snack for between meals, packed lunches, or game-day spreads — minimal active time and easy to scale up for a crowd. Each serving lands at about 320 calories and feeds 4, so it fits into lunchboxes, road trips, or an afternoon-energy gap without derailing the day. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Ingredients

• 1, about 10 oz large sweet onion
• 1 1/2 cups all-purpose flour
• 1/4 cup cornstarch
• 1 tsp baking powder
• 1 tsp paprika
• 1/2 tsp cayenne pepper
• 1 tsp salt
• 1/2 tsp black pepper
• 1 cup cold sparkling water
• for frying, about 4 cups vegetable oil

Instructions

1. Step 1: Peel and slice 1 large sweet onion into 1/2-inch thick rings, separating them carefully into individual rings.
2. Step 2: In a large bowl, whisk together 1 1/2 cups all-purpose flour, 1/4 cup cornstarch, 1 tsp baking powder, 1 tsp paprika, 1/2 tsp cayenne pepper, 1 tsp salt, and 1/2 tsp black pepper.
3. Step 3: Gradually whisk in 1 cup cold sparkling water to the dry ingredients until smooth and thick enough to coat the onion rings.
4. Step 4: Heat 4 cups vegetable oil in a deep pot or fryer to 375°F. Dip each onion ring into the batter, letting excess drip off, then carefully place into hot oil.
5. Step 5: Fry onion rings in batches for 2-3 minutes until golden brown and crispy, turning once. Remove with a slotted spoon and drain on paper towels before serving.