Preparation Time: 20 minutes
Cooking Time: 12 minutes
Total Time: 32 minutes
Servings: 4–6 people
Calories: Approximately 420 calories per serving
Ingredients
For the Onion Blossom
- 1 large sweet onion (such as Vidalia)
- 2 cups all-purpose flour
- 1 tablespoon paprika
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- 1 teaspoon cayenne pepper (optional)
- 1 teaspoon black pepper
- 1 teaspoon salt
- 2 large eggs
- 1 cup whole milk
- Vegetable oil for frying
For the Dipping Sauce
- ½ cup mayonnaise
- 2 tablespoons ketchup
- 1 teaspoon horseradish
- ½ teaspoon paprika
- ¼ teaspoon garlic powder
- Pinch of salt
- Pinch of black pepper
Equipment Needed
- Sharp knife
- Large mixing bowls
- Deep fryer or heavy-bottomed pot
- Slotted spoon
- Paper towels
- Whisk
How to Make Onion Blossom
Step 1: Prepare the Onion
Begin by peeling the onion and trimming only the top end. Leave the root end intact because it helps hold the petals together during cooking.
Place the onion root-side down on a cutting board. Using a sharp knife, make four evenly spaced cuts downward toward the root, stopping about half an inch before reaching the bottom. Continue cutting each section again until you have 12–16 petals.
Carefully separate the layers with your fingers to create the blossom effect. Be gentle to avoid breaking the petals.
Place the onion in a bowl of ice water for 10 minutes. This helps the petals open wider and creates a more attractive bloom.
Step 2: Prepare the Coating
In a large bowl, combine:
- Flour
- Paprika
- Garlic powder
- Onion powder
- Cayenne pepper
- Salt
- Black pepper
Mix thoroughly until all seasonings are evenly distributed.
In a separate bowl, whisk together the eggs and milk until smooth.
Step 3: Coat the Onion
Remove the onion from the ice water and pat dry with paper towels.
Carefully sprinkle the seasoned flour mixture between all the onion petals. Ensure every layer is coated.
Next, dip the onion into the egg and milk mixture, making sure the liquid reaches between the petals.
Return the onion to the flour mixture and coat it again thoroughly. Double coating creates the extra crispy texture that makes onion blossoms so delicious.
Shake off any excess flour before frying.
Step 4: Heat the Oil
Pour vegetable oil into a deep fryer or heavy-bottomed pot until it reaches a depth of about 3 inches.
Heat the oil to 375°F (190°C).
Maintaining the correct temperature is important because oil that is too cool will make the onion greasy, while oil that is too hot can burn the coating before the onion cooks through.
Step 5: Fry the Onion Blossom
Carefully lower the onion into the hot oil with the blossom side facing down first.
Fry for approximately 5–6 minutes.
Using tongs or a slotted spoon, carefully flip the onion and continue frying for another 5–6 minutes until golden brown and crispy.
The finished onion should have a deep golden color and a crunchy exterior.
Step 6: Drain and Serve
Remove the onion blossom from the oil and place it on a plate lined with paper towels.
Allow it to drain for 2–3 minutes before serving.
Make the Dipping Sauce
While the onion is cooling slightly, prepare the dipping sauce.
In a small bowl, combine:
- Mayonnaise
- Ketchup
- Horseradish
- Paprika
- Garlic powder
- Salt
- Black pepper
Mix until smooth and creamy.
Serve the sauce in a small bowl placed in the center of the onion blossom or alongside it.
Tips for Success
Choose the Right Onion
Sweet onions work best because they have a mild flavor and large size that creates beautiful petals.
Double Coat for Extra Crunch
Applying both a wet and dry coating twice helps create a thick, crispy crust similar to restaurant versions.
Keep Oil Temperature Consistent
Use a kitchen thermometer whenever possible. Maintaining 375°F ensures even cooking and maximum crispiness.
Open the Petals Carefully
Take your time separating the onion layers. Wider petals create a more attractive presentation and allow seasoning to reach every layer.
Serve Immediately
Onion blossoms are at their crispiest when served fresh from the fryer.
Storage Instructions
Although onion blossoms are best enjoyed immediately, leftovers can be stored in an airtight container in the refrigerator for up to 2 days.
To reheat:
- Oven: Bake at 375°F for 8–10 minutes.
- Air Fryer: Heat at 350°F for 4–5 minutes.
Avoid microwaving because it can make the coating soft and soggy.
Variations
Spicy Onion Blossom
Add extra cayenne pepper and chili powder to the flour mixture for more heat.
Cheesy Onion Blossom
Sprinkle grated Parmesan cheese over the hot onion immediately after frying.
Air Fryer Version
Spray the coated onion generously with cooking spray and air fry at 375°F for approximately 15–18 minutes until golden and crispy.
Nutrition Information
Per Serving (Approximate)
- Calories: 420
- Total Fat: 22g
- Saturated Fat: 4g
- Cholesterol: 75mg
- Sodium: 720mg
- Carbohydrates: 47g
- Fiber: 3g
- Sugars: 7g
- Protein: 8g