Sustainable Cooks
First Time Visiting? Start Here!

Freezing Onions {How to Freeze Onions}

Learn all the tips and tricks for freezing onions to save time and money. Learning how to freeze onions (diced, green, sliced, rings, and whole) is a great way to preserve this delicious staple of so many recipes.

a baking sheet with chopped frozen onions on a piece of parchment

As an Amazon Associate, I earn from qualifying purchases.

Imagine what your meal prep is going to look like if you don’t have to chop an onion for every recipe you’re making. My friend, that dream can come true if you take just a few minutes to freeze onions ahead of time! Freezing onions will change your dang life.

Frozen onions are so versatile but I get it; you don’t have time for a complicated preservation method. So, just like freezing zucchinifreezing blackberries, and freezing peas, we’re preserving this crop in the freezer. No canning, nothing fancy, and no special equipment.

A bag or container of frozen onions ready to go makes your easy healthy meal prep a breeze. Tons of prepped frozen produce is a staple in our Freezer Essentials. With your mise en place ready to go, you’re about to CRUSH fast dinners. Check out my complete guide on how to freeze fresh produce.

Can You Freeze Onions?

Heck yes, you can! They’re the perfect staple to have in your freezer for fast weeknight meals and speedy soups and stews. They’re perfect in this Instant Pot Beef Barley Soup

Can You Freeze Green Onions?

Yes! However, they won’t really hold their shape once defrosted. I would use them only for flavoring dishes and not as a garnish. Follow the directions below for freezing diced onions if you also want to preserve green onions,

How Long Do Onions Last in the Freezer?

Frozen onions will last in a conventional freezer for six months. If you have a deep freeze/stand-alone freezer, you’re safe to keep them in there for up to a year.

TOOLS FOR FREEZING Onions

How to Freeze Whole Onions

 

Blanch small onions for 3 minutes and large onions for 7 minutes. Once the time is up, strain the onions through a colander and immediately add to a bowl of ice water for five minutes. Strain again and set aside to drain. Allow onions to dry on a clean towel. 

Place on a rimmed baking sheet lined with parchment and freeze for 5 hours.

chopped frozen onions in a reusable freezer bag with whole and green onions

Pro Tips/Recipe Notes

MORE “HOW TO” POSTS YOU’LL LOVE

How to Freeze Onions

Learn all the tips and tricks for freezing onions to save a ton of time and money.
Prep Time5 mins
Freezing Time3 hrs
Total Time3 hrs 5 mins
Course: How To
Cuisine: American
Keyword: can you freeze green onions, can you freeze onions, Freezing chopped onions, How to freeze onions
Calories: 11kcal

Ingredients

  • onions

Instructions

Freezing Diced Onions

  • Line a rimmed baking sheet with parchment or a silpat. 
  • Chop or dice the onions to your preference.
  • Place the onions on the baking sheet and move them around so they aren't too clumped up, and place the tray in the freezer. Freeze for 3 hours.
  • Break apart any clumps that have formed on the baking sheet and transfer the onions to freezer-proof storage.

How to Freeze Onion Rings/Strips

  • Drop the sliced onions into boiling water for 15 seconds.
  • Once the time is up, strain the onions through a colander and immediately add to a bowl of ice water for two minutes.
  • Strain again and set aside to drain. Allow onions to dry on a clean towel. 
  • Place on a rimmed baking sheet lined with parchment and freeze for 3 hours. Transfer to freezer storage.

How to Freeze Whole Onions

  • Blanch small onions for 3 minutes and large onions for 7 minutes.
  • Once the time is up, strain the onions through a colander and immediately add to a bowl of ice water for five minutes.
  • Strain again and set aside to drain. Allow onions to dry on a clean towel. 
  • Place on a rimmed baking sheet lined with parchment and freeze for 5 hours. Transfer to freezer storage.

Notes

If you have a lot of onions to freeze at once, lay another piece of parchment on top of the onions and top with an additional layer. 
Make sure you're using sturdy freezer-safe storage to keep the onion smell contained.
Frozen onions will last in a conventional freezer for six months or a deep freezer for a year.
If onions make you cry, chill whole onions in the fridge for 1 hour prior to cutting.

Nutrition

Calories: 11kcal | Carbohydrates: 3g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 1mg | Potassium: 40mg | Fiber: 1g | Sugar: 1g | Vitamin C: 2mg | Calcium: 6mg | Iron: 1mg

 

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe Rating




This site uses Akismet to reduce spam. Learn how your comment data is processed.

2 comments on “Freezing Onions {How to Freeze Onions}”

  1. I’ve found for us, if I freeze onions on a baking sheet first then put into a container, it makes my whole fridge/freezer smell like onions for days! So I just dump them all into a ziploc bag and freeze. I just whack the bag on the counter to get a loose chunk to use when I want some. I know it is not a measured amount and that I will eventually rip a hole in the bag, but those things are worth it to me to not smell the onions forever!

    • You gotta do what you got gotta do! 🙂

      I accidentally left my onions overnight in the freezer before bagging them up and there was no smell. It’s a deep freezer so perhaps they froze more quickly?

      I deleted the repeat comment for you. No problemo.