
Bloomin' Onion Petals deliver all the crispy, golden deliciousness of the famous Outback appetizer in perfectly poppable individual pieces. These lightly battered sweet onion wedges maintain the ideal balance between crunchy coating and tender onion interior, making them impossible to resist. Paired with the spot-on copycat dipping sauce featuring that signature tangy-spicy flavor profile, these onion petals bring restaurant-quality indulgence right to your kitchen.
I first experimented with these petals after growing frustrated with traditional whole bloomin' onions that always seemed to leave half the pieces undercooked or impossible to separate. After watching my typically vegetable-averse teenager devour almost an entire batch alone, I knew I'd found a winning approach. My neighbor who worked at Outback for years actually claimed these taste even better than the restaurant version – higher praise I cannot imagine. What surprised me most was discovering how much more flavor the individual petals develop compared to the whole onion version – each piece gets perfectly crisp while maintaining that sweet onion tenderness inside.
Essential Elements
- Sweet onions: Form the foundation with their natural sweetness and tender texture. Vidalia, Walla Walla, or Texas Sweet varieties provide ideal flavor balance.
- Buttermilk: Creates perfect adhesion for breading while adding subtle tanginess. The acidity helps tenderize the onion slightly during marination.
- Seasoned flour mixture: Provides flavor-packed coating that crisps beautifully. The blend of spices ensures every bite delivers perfect seasoning.
- Mayonnaise base sauce: Forms creamy foundation that carries complementary flavors. Full-fat version provides richest texture and flavor.
- Prepared horseradish: Delivers essential kick that defines the signature sauce. Fresh varieties offer most vibrant flavor though jarred works beautifully too.
- High smoke-point oil: Creates perfect frying environment for golden exterior. Peanut, canola or vegetable oil varieties maintain consistent temperature throughout cooking.
Preparation Method
- Create crave-worthy sauce:
- Combine mayonnaise with sour cream establishing creamy base. Add ketchup, horseradish, and spices developing perfect flavor balance. Allow flavors to meld in refrigerator while preparing onions. This crucial resting time develops depth throughout sauce.
- Prepare perfect petals:
- Cut onion into precise segments creating ideal size for dipping and eating. This careful preparation ensures consistent cooking throughout each piece while maximizing surface area for crispy coating.
- Develop flavor foundation:
- Mix flour with comprehensive seasoning blend creating well-balanced coating. This thoughtfully spiced mixture ensures each petal delivers full flavor profile rather than bland crispiness.
- Create proper breading:
- Toss onion sections in initial flour coating creating dry surface for batter adhesion. Dip in buttermilk mixture allowing excess to drain properly. Coat thoroughly in seasoned flour ensuring complete coverage without clumping.
- Fry with precision:
- Maintain oil at exact temperature preventing both greasiness and undercooked interiors. Work in small batches avoiding temperature drops from overcrowding. Monitor carefully for perfect golden color indicating ideal doneness.
- Maintain maximum crispness:
- Transfer finished petals to paper towel briefly absorbing excess oil. Move promptly to wire rack preventing condensation that would soften coating. This two-step process ensures optimal texture from first piece to last.

My first attempt at these petals taught me valuable lessons about oil management. I crowded too many pieces into the oil at once, causing the temperature to plummet and resulting in soggy, oil-absorbed petals rather than crisp ones. Now I work in small batches, maintaining consistent oil temperature throughout. I've also discovered that making the sauce a day ahead creates remarkably better flavor as the ingredients have time to fully blend. The most surprising discovery was how well these freeze after the initial flour coating but before frying – I now prepare large batches through the first flour step, freeze them individually, then finish the breading and frying process whenever cravings strike.
Serving Suggestions
Present in paper-lined basket creating casual restaurant experience. Offer dipping sauce in small ramekin alongside petals rather than underneath. Consider providing additional dipping options like ranch or honey mustard complementing different flavor preferences.
Flavor Variations
Add cayenne to both batter and sauce creating spicier version for heat enthusiasts. Incorporate ranch seasoning into flour mixture creating different flavor profile throughout coating. Consider adding finely grated parmesan to breading creating savory cheese notes throughout exterior.
Storage Solutions
Keep leftovers uncovered in refrigerator maintaining crispness better than sealed containers. Reheat in 375°F oven restoring original crunch effectively. Avoid microwave reheating which creates soggy rather than crispy texture.
The first time I served these at a gathering, three different people asked for the recipe before the night ended. There's something about perfectly fried onions with that signature dipping sauce that creates instant happiness. What makes these petals truly special isn't complicated technique but attention to detail in the preparation – using sweet onions, maintaining proper oil temperature, and creating that perfect breading-to-onion ratio transforms a simple vegetable into something crave-worthy. I've discovered they're perfect for those occasions when you want to create something impressive without spending hours in the kitchen – they consistently earn enthusiastic reactions while requiring just everyday ingredients and basic cooking skills.
