Best Way to Chop Onions in a Food Processor (Top Methods!)

Are you tired of using the knife to cut onions which results in you ending up in tears? Read this article to know the best way to chop onions in a food processor.

Chopping onions is a chore. It takes forever and it always ends up with tears. But chopping onions in a food processor makes it a breeze.

When I was growing up, we always had onions around. They were cheap, plentiful, and delicious.

We’d slice onions very thin using a knife, toss them with butter, salt, pepper, and maybe garlic powder, and serve them as a side dish.

Nowadays, onions are expensive, not abundant, and not nearly as tasty. But you can still make delicious recipes by adding finely chopped onions.

Food processors are even great for chopping vegetables. They save us from having to do it ourselves, and they help us enjoy our meals. 

But sometimes, even though you bought a food processor, you just don’t feel like using it.

Maybe you’ve tried it before and it didn’t work well. Or maybe you’re not sure how to use it properly.

Whatever the case may be, I’m here to tell you that you should never be chopping onions by hand again.

Instead, you should use a food processor to chop onions.

As the process is not time-consuming and hence will save you tons of time, and it will also prevent you from getting tears.

There are many ways to chop onions, but none of them are as fast as using a food processor.

Best Way to Chop Onions in a Food Processor

Why Do Onions Make Us Cry

This is all because of the sulfur that is present in the onion.

Whenever you cut an onion it releases a compound that then stimulates the eyes’ lachrymal glands and hence the reason for your tears.

An onion when cut meets the enzymes forming sulfenic acids which then irritates the eye causing you to cry.

So if you want to chop onions without crying, just use a food processor.

The best way to chop onions in a food processor is by first slicing them into thin slices and then chopping them with the blade.

Using a food processor will help you avoid any irritation or teary eyes and helps cook evenly.

When you are done chopping the onions, put them back into the airtight container and cover them using aluminum foil so they do not dry out.

If you don’t have a food processor, you can always use a knife to slice the onions thinly and then chop them finely.

Easy Ways to Reduce Onion Tears

To reduce the tears caused by onions you can:

  • Keep the onion in the refrigerator for some time and then cut them
  • Slightly cook the onion before cutting on low heat
  • Wear goggles
  • Use a food processor

What is The Best Way To Chop Onions In A Food Processor?

Onions are delicious, but chopping them can be a pain.

If you don’t have a food processor, you may find yourself spending hours on end slicing onions by hand.

This Best Way To Chop Onions in a Food Processor will change all that.

It cuts onions quickly and easily, making them ready to add to recipes in minutes.

Step 1: Find out the S blade attachment that’s provided to you with the food processor.

It could be made out of metal or plastic and the S Blade has an S shape as shown in the picture below.

S-blade attachment of food processor
S Blade

Step 2: Now attach the S blade attachment to the working bowl of the food processor.

Step 3: If you’re dealing with a large batch of onions then it’s preferable to cut them into halves.

But use the methods provided above to reduce irritation.

Step 4: Now put the onions inside the processing bowl then close and lock the lid.

Step5: This is the most important step. If you mess it up then you’ll have minced onions instead of chopped ones.

Here, you should be using the pulse function to chop onions instead of keeping it on for long as you don’t want to make onion juice here.

Few pulses and your onions are chopped and ready.

See, how simple it is without having to chop onions manually.

All you have to do is load the onion slices into the feed tube, use the pulse mode, and watch the magic happen.

It works so well, that you’ll wonder why you didn’t use this method sooner!

Do you want to know the top food processors to get one? If you want to buy one then read this article on the best food processors in India.

Is It Safe to Chop Onions in a Food Processor without using a Knife

Using a food processor to chop the onions is definitely a safe method compared to manually cutting using a knife.

Since you just put the slices of onion into the food processor and let it do the rest there’s nothing wrong that can happen.

But when you chop onions using this method you have less control over how finely you can chop.

If you don’t use pulse while processing then you may end up with an undesirable result.

Chopping with a knife has its own merits and demerits but apart from the crying part, you have total control when you use the knife.

Since not everyone has time these days, you can just process the onion and get the work done asap.

Don’t pulse more than a couple of times and keep checking how finely they’re chopped.

How to Cut an Onion Without Crying

Cutting onions without crying is easy once you know the secret. All you need is a food processor.

I’m sure you’ve heard of these handy kitchen appliances, right? Well, they’re great for chopping veggies, shredding cheese, grinding nuts, and more.

And they’re perfect for cutting an onion without shedding a drop from your eye! 

If for some reason you still want to use a knife to manually cut the onion then make sure you follow the things below.

You can freeze the onion for half an hour before you decide to cut it which for some reason doesn’t make you cry.

Ever wondered how chefs and professional cooks use knives for chopping onions? They use a different kind of knife unlike what you use in the kitchen.

These are mostly sharp knife which doesn’t damage much of the onion skin which is actually the reason for releasing vapors that trigger irritate the eyes.

If you have a microwave at your disposal, then you may try microwaving it before you chop it. It works.

You can also try wearing goggles so that the gases won’t be able to reach your eyes.

Can you Grate an Onion in a Food Processor

The best way to grate onions is by hand.

However, if you don’t have the patience to peel off the skin to grate onions, then you can use a food processor to quickly remove the outer layers of the onion.

To do this, cut the top part of the onion off and set it aside.

Then slice the rest of the onion down the middle, leaving the root end intact.

Peel away the outer layer of the onion until only the white flesh remains.

Slice the onion again, this time cutting it crosswise.

Repeat these steps until you have removed all the onion layers.

Now, put the onion in the bowl of a food processor and pulse it until it’s chopped into small pieces.

After grating onions in the food processing machine remove the onion pieces from the food processor and transfer them to a serving dish.

If you want to try out another unique way then you can use a cheese grater to grate onions as a cheese grater is made for grating.

You can also have grated vegetables using it.

Can you use a Vegetable Chopper for Onion Chopping?

Yes, you can use a vegetable chopper for chopping onions.

Vegetable choppers are made to reduce the time we spend cutting vegetables using our hands.

Since onion is also a vegetable you can go ahead and use the chopper.

What is the Best Way to Store Onions after Cutting

Onions are delicious, nutritious foods that add flavor to many dishes.

However, storing onions properly can prevent them from spoiling quickly.

Below are some tips to store cut onions safely and effectively.

How to Store Onions Safely

1. Keep your onions in a cool place. If you store onions at room temperature, they will spoil more easily.

You should keep them away from heat sources such as the oven or stovetop.

Also, if you live in an area with hot weather, keep your onions in a cooler location than where you spend most of your time.

2. Don’t wash your onions until just before using them. Washing onions removes their natural protective coating.

This makes it easier for bacteria to grow on the surface. Instead, simply rinse off any dirt.

3. Cut your onions into equal-sized pieces. Large chunks of onion may be hard to chop up evenly.

Smaller pieces make chopping much easier as they’re the desired size.

4. Make Use of a food processor to chop your onions. Putting onions in a food processor is great for cutting onions down into small pieces.

It also helps minimize the amount of liquid released when you cut the onions.

5. Wrap them tightly after you chopped them in plastic wrap. The plastic wrap keeps moisture out and prevents browning.

6. When you use your onions, remove the plastic wrap immediately. Then store them in a container with a tight lid.

7. Refrigerate them after you have used them. They will last longer this way.

Check out the below video on How to Store Cut Onion pieces for Weeks


In conclusion, food processors are amazing tools for chopping onions quickly and easily.

The food processor is also perfect for cutting through tough vegetables like carrots and potatoes without having to use a knife you can dice onions or make diced vegetables.

So whether you want to chop up a bunch of veggies for dinner tonight or you’re trying to cut through onions, a food processor machine is definitely going to help you save time and effort.

All you need to do is to add the onions to a food processor bowl, turn it on, and let it do its magic.

Once you’re done, you can toss the finished product right into your favorite recipe, or store it in a sealed container for later use.

Related Article: Can I Use a Blender Instead of a Food Processor

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