Blooming Onion and Dipping Sauce Recipe

Large onion: The main star of this recipe, it’s cut into sections to create the blooming effect.

All-purpose flour: Used to coat the onion and give it a crispy texture when fried.

Paprika: Adds a mild smoky flavor and a beautiful color to the batter and sauce.

Cayenne pepper: Gives a little spicy heat to both the batter and the dipping sauce.

Garlic powder: Brings a savory depth to the coating.

Black pepper: Adds a subtle sharpness and balances the flavors.

Buttermilk: Helps the batter stick to the onion and adds a slight tang.

Eggs: Used to bind the batter ingredients together.

Mayonnaise: The creamy base for the dipping sauce.

Ketchup: Adds sweetness and tang to the sauce.

Horseradish: Gives the dipping sauce a spicy, zesty kick.

Salt: Enhances all the flavors in the sauce.

Dried oregano: Adds a hint of herbal flavor to the sauce.

Cutting the onion just right is a big part of making your blooming onion look amazing and cook evenly. Here’s how to do it step by step:

1. Start by removing the top of the onion and peeling off the skin so it’s clean and ready.
2. Place the onion with the root side down on your cutting board. This helps keep it together while you cut.
3. Carefully slice the onion into 16 sections, but don’t cut all the way through! Stop just before the root so the layers stay connected at the bottom.
4. If you find it tricky to cut evenly, try using a sharp knife and take your time. A dull knife can squish the onion and make the cuts uneven.

Doing this makes the onion open up like a flower when it fries, which is what gives the blooming onion its cool look. Plus, if the cuts are even, the onion cooks all the way through without some parts burning or staying raw.

When I first tried this, I accidentally cut all the way through the root, and the onion fell apart in the hot oil. It was a mess! Now, I always double-check before frying. Also, if you want to save time, you can use a large sharp knife or even kitchen shears to make the cuts, but just be gentle so you don’t slice through the root.

Getting this step right makes the whole recipe smoother and the final fried onion way tastier. Plus, it’s fun to see your onion bloom open like a flower on the plate!

• large onion - Substitute with sweet onion: Sweet onions have a milder flavor and are less pungent, making them a good alternative for a blooming onion.

• all-purpose flour - Substitute with gluten-free flour blend: A gluten-free flour blend can be used to accommodate those with gluten sensitivities or celiac disease.

• paprika - Substitute with smoked paprika: Smoked paprika adds a deeper, smoky flavor that can enhance the overall taste of the dish.

• cayenne pepper - Substitute with chili powder: Chili powder provides a similar level of heat and can be used if cayenne pepper is unavailable.

• garlic powder - Substitute with onion powder: Onion powder can provide a similar depth of flavor if garlic powder is not on hand.

• black pepper - Substitute with white pepper: White pepper has a similar spiciness and can be used as an alternative to black pepper.

• buttermilk - Substitute with milk and lemon juice: Combine 1 cup of milk with 1 tablespoon of lemon juice to create a buttermilk substitute.

• beaten eggs - Substitute with flax eggs: Mix 1 tablespoon of ground flaxseed with 3 tablespoons of water for each egg to create a vegan alternative.

• mayonnaise - Substitute with Greek yogurt: Greek yogurt provides a similar creamy texture with fewer calories and more protein.

• ketchup - Substitute with tomato paste and vinegar: Mix tomato paste with a small amount of vinegar to mimic the tangy flavor of ketchup.

• horseradish - Substitute with wasabi paste: Wasabi paste has a similar pungent heat and can be used as a substitute for horseradish.

• paprika - Substitute with ancho chili powder: Ancho chili powder offers a mild heat and a slightly sweet flavor, making it a good alternative to paprika.

• salt - Substitute with soy sauce: Soy sauce can add a similar salty flavor with an additional umami depth.

• dried oregano - Substitute with dried thyme: Dried thyme has a similar earthy flavor and can be used as a substitute for dried oregano.

• black pepper - Substitute with red pepper flakes: Red pepper flakes add a different kind of heat and can be used if black pepper is not available.

• cayenne pepper - Substitute with hot sauce: A few drops of hot sauce can provide a similar level of spiciness as cayenne pepper.

• Allow the blooming onion to cool completely at room temperature before storing. This prevents condensation, which can make it soggy.
• Wrap the cooled blooming onion tightly in aluminum foil or plastic wrap. For extra protection, place it in an airtight container or a resealable plastic bag.
• Store the wrapped blooming onion in the refrigerator for up to 3 days. Reheat in the oven at 375°F for about 10-15 minutes to regain its crispiness.
• For longer storage, freeze the blooming onion. Place it on a baking sheet lined with parchment paper and freeze until solid. Once frozen, transfer to a freezer-safe bag or container. It can be frozen for up to 1 month.
• To reheat a frozen blooming onion, preheat the oven to 375°F. Place the frozen onion on a baking sheet and bake for 20-25 minutes or until heated through and crispy.
• Store the dipping sauce in an airtight container in the refrigerator. It will keep for up to 1 week.
• If you want to freeze the dipping sauce, pour it into a freezer-safe container, leaving some space for expansion. Freeze for up to 1 month. Thaw in the refrigerator overnight before serving.

• Preheat your oven to 350°F. Place the leftover blooming onion on a baking sheet lined with parchment paper. Cover it loosely with aluminum foil to prevent it from drying out. Bake for about 10-15 minutes or until heated through. This method helps retain the crispiness of the onion.

• Use an air fryer if you have one. Preheat the air fryer to 350°F. Place the blooming onion in the basket and heat for about 5-7 minutes. This method is excellent for maintaining the crunchiness of the batter.

• For a quick reheat, use a microwave. Place the blooming onion on a microwave-safe plate and cover it with a damp paper towel. Microwave on medium power for 1-2 minutes. Note that this method might make the onion a bit soggy, but it’s the fastest option.

• Reheat the dipping sauce separately. Place it in a microwave-safe bowl and heat on low power for 20-30 seconds, stirring halfway through. Alternatively, you can warm it gently on the stovetop over low heat, stirring occasionally.

• Cutting board: A sturdy surface to safely cut and prepare the onion.

• Sharp knife: Essential for making precise cuts in the onion without cutting all the way through.

• Mixing bowls: Used for combining the flour mixture and the buttermilk mixture separately.

• Whisk: Helps to thoroughly mix the dry ingredients and the wet ingredients.

• Deep fryer: Necessary for frying the onion to achieve a crispy, golden brown exterior.

• Tongs: Useful for carefully placing the onion into the hot oil and removing it once fried.

• Paper towels: Used to drain excess oil from the fried onion.

• Small bowl: Ideal for mixing the dipping sauce ingredients together.

• Measuring cups: Ensures accurate measurement of ingredients for both the batter and the dipping sauce.

• Measuring spoons: Provides precise measurements for spices and other small quantity ingredients.

• Plate: For serving the blooming onion alongside the dipping sauce.

prep the onion ahead: Cut and store the onion in the fridge a day before to save time on the day of cooking.

use pre-made batter: Mix the flour and spices in advance and store in an airtight container.

quick dipping sauce: Make the dipping sauce a day ahead and refrigerate.

efficient frying: Use a deep fryer with a basket to easily lift the onion out once it's done.

mise en place: Have all ingredients measured and ready before starting to cook.