Craving the legendary Bloomin’ Onion from Outback Steakhouse but want to skip the restaurant? You’re in luck. This at-home version brings everything you love—crispy golden petals, bold seasoning, and a zesty dipping sauce—right to your kitchen. It’s a guaranteed crowd-pleaser for game days, parties, or family dinners.
Not only does it look impressive when served, but it also tastes even better when it’s fresh out of the fryer. Best of all, this recipe doesn’t require fancy tools or complex techniques. If you have a large sweet onion and a few pantry staples, you’re halfway there.
What You Need to Make a Bloomin’ Onion at Home
Onion and Batter Ingredients
- 1 large sweet onion (Vidalia or similar variety)
- 2 cups all-purpose flour
- 1 tablespoon paprika
- 1 teaspoon cayenne pepper
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1/2 teaspoon salt
- 1/2 teaspoon black pepper
- 2 large eggs
- 1 cup whole milk
- Vegetable oil, for frying
Dipping Sauce Ingredients
- 1/2 cup mayonnaise
- 2 tablespoons ketchup
- 1 tablespoon prepared horseradish
- 1/2 teaspoon paprika
- 1/4 teaspoon salt
- 1/4 teaspoon black pepper
- 1/4 teaspoon cayenne pepper
Step-by-Step Instructions for the Perfect Bloomin’ Onion
Slice and Prepare the Onion
Peel your large sweet onion and cut off the top (non-root) end. Set it root-side down on a cutting board. Using a sharp knife, make 16–20 vertical slices from the top down toward the root, leaving the root base intact so it holds together. Gently separate the layers to create the iconic blooming effect. Take care not to force the petals—gentle separation is key.
Prepare the Flour Mixture
In a large bowl, combine flour, paprika, cayenne pepper, garlic powder, onion powder, salt, and black pepper. Mix thoroughly. This will form the seasoned flour coating.
Prepare the Wet Batter
In a separate bowl, whisk together the eggs and milk until smooth. This wet mix helps bind the flour to the onion for that crispy crust.
Coat the Onion
Dip the onion into the seasoned flour mixture, using your hands or a spoon to ensure every petal is coated. Shake off excess flour. Now dip the floured onion into the egg-milk mixture, again ensuring it gets into every layer. Finally, return the onion to the flour mixture for a second coating.
Tip: Press the flour gently into the petals the second time for extra crunch.
Heat the Oil
In a deep fryer or heavy-bottomed pot, heat vegetable oil to 375°F (190°C). Make sure you have enough oil to fully submerge the onion. Use a thermometer for accuracy.
Fry the Onion
Carefully lower the onion into the hot oil, root-side up. Fry for 5–7 minutes, or until the petals turn golden brown and crispy. Gently remove it using a slotted spoon and transfer to a paper towel-lined plate to drain.
Make the Dipping Sauce
While the onion drains, mix the mayonnaise, ketchup, horseradish, paprika, salt, black pepper, and cayenne pepper in a small bowl. Stir well to combine and adjust seasoning if needed. The horseradish gives it that signature kick, so don’t skip it.
Serve
Place the Bloomin’ Onion on a serving plate and place the dipping sauce in a bowl in the center or serve it on the side. Serve hot and crispy.
Helpful Cooking Notes
- Cutting Tip: Chill the onion for 30 minutes before slicing to make cleaner cuts and reduce tearing.
- Oil Temperature: Maintain a steady 375°F while frying. Too low, and the onion will be greasy. Too hot, and it will burn.
- Coating Technique: Don’t rush the flouring steps—pressing flour into each petal ensures crispiness.
- Use Tongs or Spider Strainer: These make it easier to lower and lift the onion safely into hot oil.
Delicious Variations to Try
Spicy Bloomin’ Onion
Add 1/2 teaspoon of hot sauce to the egg mixture or increase cayenne in the flour for more heat.
Gluten-Free Version
Swap regular flour for a gluten-free all-purpose blend. The texture stays surprisingly crisp.
Cheesy Bloomin’ Onion
After frying, sprinkle grated Parmesan or your favorite shredded cheese while the onion is still hot.
How to Serve Your Bloomin’ Onion
- Appetizer Platter: Add mozzarella sticks, sliders, or chicken tenders to create a fun appetizer spread.
- Pair with Entrées: Serve alongside grilled steak, barbecue ribs, or burgers for a full Outback-inspired meal.
- Party Snack: Perfect for football games or family movie nights.
Frequently Asked Questions
Can I make the Bloomin’ Onion in advance?
You can prep the onion and coat it up to 4 hours in advance. Keep it refrigerated until you’re ready to fry. For best texture, always fry fresh.
What’s the best onion to use?
Sweet onions like Vidalia, Walla Walla, or Texas Sweet are ideal. They’re mild and balance well with the bold spices.
Can I bake it instead of frying?
Yes! Spray generously with cooking spray and bake at 400°F (200°C) for 25–30 minutes on a wire rack over a baking sheet. It won’t be quite as crispy, but it’s a lighter option.
How do I store leftovers?
Wrap the cooled onion in foil or store in an airtight container in the refrigerator for up to 2 days. Reheat in the oven at 375°F (190°C) for 10–12 minutes to re-crisp.
Can I air fry it?
It’s possible, but results vary depending on your air fryer size. You may need to cut the onion smaller or in halves. Air fry at 380°F (193°C) for 12–15 minutes, flipping halfway.
Pro Tips for Success
- Use a large bowl for coating so the onion has room to move.
- Double-dip technique is key—flour, then egg, then flour again.
- Drain on paper towels or a cooling rack immediately after frying to avoid sogginess.
- Serve immediately—this is a dish best enjoyed hot and crispy.
Final Thoughts
The Outback Steakhouse Bloomin’ Onion is more than just an appetizer—it’s a show-stopper. With its crispy golden layers and bold seasoning, it’s guaranteed to impress at any event or dinner. And now, you can make it right at home without compromising flavor or texture.
Whether you’re planning a party or just want to indulge, this homemade version delivers the same restaurant-quality taste with a personal touch. The combination of the seasoned petals and spicy dipping sauce creates an irresistible flavor that keeps everyone reaching for more.