How To Reheat A Bloomin Onion – A Great Treat From Leftovers

Food reheating is a technique to prepare your leftovers after each meal to reduce food waste. However, you must have some fundamental understanding of how to reheat specific types of food like bloomin onions to ensure that their flavor and nutritional content remain the same after warming.

To reheat leftover bloomin onion, you must be mindful of the required temperature. It is also a need to follow the right process to preserve the original flavor and the nutritional value of the food. So, how to reheat a bloomin onion properly? Here’s our guide for you!

How To Reheat A Bloomin Onion

Bloomin Onion

Many of you must be familiar with how to reheat mozzarella sticks and possibly wonder if it is the same for reheating bloomin onion. The fact is, we can use the exact same methods, with a few twists and turns!

Now, let us show you the answer to the question, “how do you reheat a bloomin onion.”

Method 1: Using An Oven

In The Oven

Using an oven to reheat bloomin onion is probably the most popular solution because it is both convenient and effortless. 

The most common types of ovens on the market today are conventional ovens and convection ovens. They all operate on the idea of heating rods set on the roof, the floor (in the oven cavity), or both.

The heated bar will spread heat to the surrounding area and absorb moisture in the food, allowing it to heat up without getting soggy. The onion flavor will remain as a result.

If you put fry onions in your freezer to store, it would be best to defrost them at normal temperature before heating up. In this way, it can both maintain your onion dish’s crispness and protect your health!

So, exactly, how to reheat bloomin onion from outback using the oven? Here is the process:

  • To begin, preheat your oven to 425°F for 10-15 minutes to avoid scorching the outside while the inside remains chilly.
  • Place your onion on the oven rack. You should also prepare a baking sheet to keep the oven clean by getting rid of any extra oil.
  • Turn on the oven and heat it to 425°F for 8-10 minutes.
  • For another 3 minutes, turn to broil mode. Now, you can serve the crispy dish!

This is one of the best ways to treat your appetizer leftover bloomin onion!

Method 2: Using An Air Frying

Air Frying

If you ask us how to prepare a blooming onion, the answer will be by using an air fryer. Needless to say, this is a device that will revolutionize home cooking by making 5-star cuisine simple to prepare at home. 

Air fryers bloomin onions are a healthier alternative to deep-fry meals. Even if you don’t pay close attention to changing the temperature and baking mode, your air fryer blooming onion will not be soggy like other traditional methods.

From our perspective, this is truly the best way to reheat bloomin onion! It would help if you referred to this blooming onion air fryer recipe to guide your homemade bloomin onion.


  • Preheat the oven to 400°F for 10 minutes like the way you would do with the oven. You can spritz a little olive oil on the onion, but only a small amount!
  • Insert the baking rack into the fryer, and place the onion on top carefully. This method will keep your dish from absorbing the melted oil.
  • Set the temperature to 400 degrees F for 5 minutes, then continue to monitor until the dish reaches the appropriate temperature.
  • Take out the onion and absorb the excess oil using absorbent paper. Be careful with the fryer part, as it is very hot and can cause burns.
  • Arrange the food on a dish and decorate it with a sprig of parsley, basil, or rosemary.

Method 3: Using A Microwave

In A Microwave

If you don’t have spare time, the microwave will probably be a lifesaver as it can reheat BBQ blooming onion in the blink of an eye! Trust us; this is a cutting-edge and very effective approach to making a blooming onion

Yet, like any heat preparation method, the microwave can affect the nutritional content to a certain extent, depending on how you use it. We recommend you choose products equipped with a temperature control sensor or set the temperature to low if your microwave is outdated.

Inevitably, this blooming onion easy recipe will likely absorb oil and be unappealing. If you are not in a rush, follow this guide to avoid this situation:

Method to reheat your bloomin onion:

  • Activate the thaw option for frozen bloomin onion, and select the appropriate setting.
  • Place the onion portion in a suitable container. It is best to use glass containers or other microwave-safe or microwavable food boxes to protect health and avoid explosions.
  • Turn on the microwave and set it to low heat or reheat function.

Method 4: Deep Frying

Deep Frying

It is not the best blooming onion recipe for reheating, but deep frying is possible if you don’t have any of the above equipment. 

Still, deep fried blooming onion is not an easy cooking method. The dish will be dry, burned, and devoid of flavor and nutrition if you do it incorrectly. Furthermore, adding oil to an already greasy dish is definitely not a healthy option!


  • Heat a pan and fill it with olive oil, heat up to 350F. Keep an eye on this optimal temperature, as anything lower or higher will result in soggy or scorching circumstances.
  • Fry the onion for 2-3 minutes in the pan. To ensure that the onions cook evenly, flip them on both sides.
  • Then, take them out and dab any excess oil with absorbent paper.

Method 5: Reheating With a Grill

Reheating With a Grill

The final solution we offer for reheating your batter recipe for blooming onion is to grill. This can be challenging at times, but the results are quite satisfying. 

Your onion will develop an extra layer of flavor, somewhat smoky due to direct heat exposure. While there will be some grill marks on the dish’s surface, we find it extremely delicious and visually appealing.


  • Place the bloomin onion in a single layer on the skillet, and begin grilling over the flames. To avoid burning, turn the grill over and over again.
  • When the dish has reached the desired temperature, take them out and prepare them on the dish.

How To Prepare Bloomin Onion – Bloomin Onion Air Fryer Recipe

How To Make Bloomin Onions

Trim, fry, and make blooming onion dipping sauce are the three steps to perfecting the baked onion blossom recipe!

First of all, let’s see how to cut a bloomin onion properly. Although you won’t be able to make it as beautiful as in a restaurant, simply keep the wings linked to the base, and you’ll be fine!

  • Peel off the outer skin, then wash and drain with cold water.
  • Cut off the top to make it flat.
  • Chop the onion into four sections with a knife. Remember to run the knife lengthwise over the onion, retaining about 1 inch below the base to keep them sticking together.
  • Continue to divide each quarter above into four. You will have a flower consisting of 16 equal petals as a result.
  • Finally, fill a bowl halfway with ice water and soak the onion in it for about 2 hours. Cold temperatures will cause the wings to expand and form the best shape naturally.

When you are done trimming the onion, it is time to find out how to cook a blooming onion.

  • Mix flour, baking soda, and salt in a big bowl.
  • Put eggs and milk in another bowl and stir well. The mixture should be slightly liquid but have a certain consistency.
  • Dip the onion in the egg custard bowl, then continue to dip it in the flour so that the dough is evenly coated. Repeat this step 2 times.
  • Heat oil in a frying pan to 400 degrees F. Add onion and fry until golden
  • Then, take it out and lay it on a plate with absorbent paper. Continue in this manner until the batch is completed.

How To Make Dipping Sauce For Bloomin Onion

An excellent sauce will definitely help to take your bloomin onion recipes to restaurant-quality levels.


  • Sour cream
  • Ketchup
  • Paprika, red pepper flakes, salt


  • Mix all the above ingredients in a large bowl.
  • Put it in the fridge to rest for about 30 minutes, and it is ready to be served after that!

In case you don’t have time to make your sauce, Mustard Aioli, Sriracha Aioli, or Garlic Aioli will be the perfect choices. 


Can You Bake A Bloomin Onion? 

Yes, you certainly can. Even though this is a fried dish, the shape of the dish will be nearly identical when baked. Especially, If you’re on a diet or have a medical condition, we recommend baking rather than deep frying.

​​What Is The Best-Baked Onion Blossom Recipe?

In general, this depends on each person’s culinary taste. You can refer to our recipe above or create a new one; we are sure it will be delicious!

Is A Deep-fried Bloomin Onion Bad For You?

Consuming fried meals can increase blood pressure, diminish good HDL cholesterol, and lead to obesity. Therefore, you should reduce the amount of fried foods consumed to avoid a negative impact on health.

How To Reheat Bloomin Onion: Conclusion

When it comes to how to reheat bloomin onion, you can choose all of the above methods as they all can do a great job. To summarize, there are five ways to reheat this dish: Using the oven, air frying, microwave, deep-frying, and grill. The only thing you need to consider is the choice to suit your kitchen conditions and circumstances, that’s all!

We hope you had a good time and that our guides were helpful to you. Thank you for your time, and see you soon on our next posts.

Kevin Richard

Hi all! I’m Kevin. I spend plenty of time in the kitchen every day because I love cooking healthy and delicious foods for my family and friends. Cooking gives me a chance to be creative and fun. It’s also one of the most meaningful ways to express my love and take care of my little family.

Click Here to Leave a Comment Below 1 comments

Leave a Reply: