Here I’ll show you how to make a blooming onion in the most delicious way possible!

For those on dedicated diets, your journey unfortunately ends here. For those who can’t wait to wrap their chops around some questionable calories, welcome. And in turn, welcome to the most delicious form of fried onion you’ll ever taste. Onion rings, you were so last year.

You are watching: How To Cut A Blooming Onion Video

blooming onion on slate with lime dip in the centre and knife blurred in front

Blooming Onion

I don’t know about you, but when I first laid my eyes on a blooming onion, I thought ‘how the heck do you make that!?’. But you know what, after a little research and a little (a LOT!) of testing, I’ve come to realise it’s not all that difficult.

What Onion to use?

You’re just looking for a regular large white onion. Try and get your hands on a ‘cannonball onion’ (in the UK they sell them in Morrisons). Any sort of sweet onion varieties like Vidalia will do the trick.

Essentially you want to find the largest one you can get your hands on though. I’m all for ‘good things come in small packages’, but in this instance bigger is certainly better. The bigger the onion, the bigger the petals and the less chance they’re going to turn into wilted crispy bits of batter when they’re fried.

How to cut a Blooming Onion (process shots)

  1. Peel onion then cut off the very tip (not the root).
  2. Flip the onion cut side down.
  3. Begin slicing about 1/2 inch away from the root. I find it easiest to do 4 quarter slices, then about 3-4 times in between. You should be able to make about 12-16 slices, depending on the size of the onion.
  4. Flip the onion back over, then gently spread out the petals.

4 step by step photos showing how to cut a blooming onion

Blooming Onion Batter

When it comes to coating the onion you’ll need two large bowls:

  1. Flour – This is not only what will give the blooming onion that crispy exterior, but it’s also an opportunity to inject some flour. In with the flour I add cayenne, paprika, oregano, garlic powder, salt & black pepper.
  2. Milk & Egg – This is what helps the flour stick to the onion in order to build up a thin crust. The egg is what does the sticking, whilst the milk ensures it’s thin enough to get in all the cracks and crevices of the onion.

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The aim of the game is to really ensure you get in and around as much and as many of the petals as possible. There’s no way around this, it’s gonna get a little messy, but it’s worth taking the time to properly coat the onion.

The second thing to remember is after each coating, make sure you shake off excess flour/egg. This will ensure your blooming onion petals don’t stick together and become clumpy.

Process shots: whisk spices into flour (photo 1), coat onion (photo 2), whisk eggs and milk (photo 3), coat onion (photo 4), place back into the flour (photo 5), coat again (photo 6).

6 step by step photos showing how to make a blooming onion

Deep Fried Blooming Onion

When it comes to deep frying the onion, there’s a few things to consider:

Tips for deep frying a blooming onion

  • Oil – You want to use an oil with a high smoking point like sunflower, vegetable or canola oil. Do not use olive oil, it will smoke out the kitchen! You also want to make sure you’ve got enough oil to comfortably cover the size of the onion.
  • Pot – You want a pot that’s large enough to fit the onion. Take into consideration the oil will rise fairly considerably as you place in the onion, especially as it vigorously bubbles in the first instance.
  • Temp – Important the oil is hot enough when you place in the onion. You want it 180C/350F. Any lower and you risk the onion soaking up too much oil and going soggy. The oil temp will drop when you add the onion, but just maintain it as best you can.
  • Face Down – I like to place the onion in face down and fry for a few mins, then flip it over and fry until cooked through. I find frying it upside down helps any trapped flour fall out of the core of the onion. It also ensures the ends of the petals fry properly, as they can often poke out the top of the oil once flipped.

The main thing is just to be incredibly careful whilst frying the onion. Use a strong ladle, lower it in very slowly and don’t take your eye off it!

Process shots: add onion to hot oil (photo 1), flip and fry until golden crispy (photo 2).

2 step by step photos showing how to fry a blooming onion

Blooming Onion FAQ

Can you bake a blooming onion?

I have actually tested this, and whilst there are plenty of recipes that offer a recipe for a baked blooming onion, in my opinion it’s no where near as crispy as when fried.

Do I have to freeze the onion before frying?

Read more: How To Store Kale Chips After Baking | Coral's Blog – Food Blog – Cooking Guide

Some recipes suggest freezing the onion after you’ve coated it. I have tested this but found minimal difference in the outcome.

What dip to serve with a blooming onion?

My favourites are Sriracha Mayo, BBQ Mayo and Sweet Chilli Mayo. Check out all my Delicious Dips for inspiration though!

close up shot of hand dunking onion petal into dip in blooming onion

Serving a Blooming Onion

Once it’s fried, you’ll want to drain it on some paper towels. I like to finish with a good pinch of salt to draw out any final moisture.

Mini dipping bowl

I like gut out a lime and use it as a dipping bowl. You could also use a small glass pot if you’re not as extra as me 😂

Looking for more fried onion goodness? Check out my Beer Battered Onion Rings!

Alrighty, let’s tuck into the full recipe for this blooming onion shall we?!

closeup shot of onion petals dunking into small dip

How to make a Blooming Onion (Full Recipe & Video)

If you loved this Blooming Onion recipe then be sure to Pin it for later! Already made it? Let me know how you got on in the comments below and pick up your free ecookbook along the way!

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