Are you wondering, “Can you freeze onions?” If so, you’re not alone! Onions are a staple in many kitchens, and freezing them can be a great way to save time and reduce waste. Whether you’re chopping up a large batch for a soup or sautéing them for a stir-fry, knowing how to freeze onions properly can make your cooking experience more efficient. In this guide, we will dive deep into the world of frozen onions, covering everything from preparation to storage, ensuring you have all the information you need to add this technique to your culinary repertoire.
Why I Love This Recipe

Freezing onions is one of those food preservation methods that will transform your cooking. Not only does it save time during meal prep, but it also helps cut down on food waste. Think about all those times you bought a bag of onions, only to have a few go bad before you could use them. Freezing onions allows you to use exactly what you need and store the rest for later. Plus, when you thaw them, they retain much of their flavor and texture, making them perfect for soups, stews, and casseroles.
What Goes Into Can You Freeze Onions? The Complete Guide to Freezing Onions
To successfully freeze onions, you’ll need just a few simple ingredients and some preparation. Here’s what you’ll need:
- Onions: Any variety will work, including yellow, red, or white onions.
- Water: If you choose to blanch the onions before freezing, you’ll need some water for the blanching process.
- Freezer bags or containers: Choose airtight bags or containers to prevent freezer burn.
- Knife and cutting board: For chopping your onions efficiently.
- Measuring cup: To portion out your chopped onions if needed.
Tools of the Trade
Having the right tools can make the freezing process easier and more efficient. Here are some essential items you’ll need:
- Sharp Knife: A good knife makes chopping onions a breeze.
- Cutting Board: A sturdy surface to chop your onions on.
- Blanching Pot: If you decide to blanch your onions, a pot of boiling water is essential.
- Ice Bath: A bowl of ice water to quickly cool the onions after blanching.
- Freezer Bags: Airtight bags to store your onions in the freezer.
Directions: Can You Freeze Onions? The Complete Guide to Freezing Onions

Now that you have all your tools and ingredients ready, let’s walk through the steps to freeze onions successfully.
Step 1: Prepare Your Onions
Start by peeling the onions and removing any outer skins. Cut off the root end and the stem.
Step 2: Chop Your Onions
Dice the onions into your desired size. Remember, smaller pieces will thaw quicker and are more versatile for various recipes.
Step 3: Blanch (Optional)
If you choose to blanch them, bring a pot of water to a boil. Add the chopped onions to the boiling water for about 2-3 minutes. This process helps to preserve their flavor and color.
Step 4: Ice Bath
Immediately transfer the blanched onions to an ice bath to stop the cooking process. Leave them in for the same amount of time you blanched them.
Step 5: Drain and Dry
Drain the onions thoroughly and pat them dry with a paper towel to remove excess moisture.
Step 6: Portion and Pack
Decide how much onion you want in each bag or container. Scoop the onions into your freezer bags or containers, removing as much air as possible to prevent freezer burn.
Step 7: Label and Freeze
Label your bags with the date and type of onion. Place them in the freezer, and voila! You have successfully frozen onions.
Make It Diet-Friendly

Freezing onions is naturally diet-friendly, but here are some tips to keep them in line with specific dietary needs:
- Low Sodium: Avoid adding salt when preparing onions for freezing.
- Vegan: This method is 100% plant-based, making it suitable for vegan diets.
- Whole30: Onions are allowed on Whole30, making them a great addition to your meals.
- Paleo: Freezing onions fits well within the paleo diet guidelines.
Mistakes That Ruin Can You Freeze Onions? The Complete Guide to Freezing Onions
Even with the best intentions, some common mistakes can lead to less-than-ideal frozen onions. Here’s what to avoid:
- Not Blanching: Skipping the blanching step can lead to a loss of flavor and texture during freezing.
- Freezing Whole Onions: Whole onions don’t freeze well and can develop an unpleasant texture.
- Not Using Airtight Bags: Failing to seal your bags properly can cause freezer burn.
- Overpacking Bags: Too many onions in one bag can lead to uneven freezing and make them hard to use later.
Make-Ahead & Storage
Once you’ve frozen your onions, they can last for quite some time if stored properly. Here are some tips for make-ahead and storage:
Frozen onions can last up to 6-12 months in the freezer. For best quality, use them within the first six months. Store them in a cool, dry place in your freezer, ensuring they are in airtight containers or bags to keep them fresh.
To use frozen onions, you can add them directly to your dishes without thawing, making them a convenient option for quick meals.
Ask & Learn
Can I freeze raw onions without blanching them?
Yes, you can, but blanching helps preserve flavor and texture. If you’re in a rush, freezing raw onions is still an option, but they may not taste as fresh when thawed.
How long do frozen onions last?
Frozen onions can last for 6-12 months in the freezer, but for best flavor and quality, try to use them within the first six months.
Can I use thawed onions in raw dishes?
Thawed onions can be used in cooked dishes but are not recommended for raw dishes, as their texture may become mushy after freezing.
Can I freeze cooked onions?
Absolutely! Cooked onions freeze well, so if you have leftovers from a dish, feel free to freeze them in the same manner as raw onions.
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Save & Share
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Freezing onions is a simple yet effective technique that can streamline your cooking process and reduce food waste. By following the steps outlined in this guide, you can enjoy the convenience of having perfectly chopped onions at your fingertips, ready to elevate your meals. Whether you’re whipping up a quick stir-fry or a comforting soup, frozen onions will prove to be a game-changer in your kitchen. So go ahead, take the plunge, and enjoy the benefits of freezing onions today!

Can You Freeze Onions? The Complete Guide to Freezing Onions
Equipment
- Sharp Knife
- Cutting Board
- Blanching Pot
- Ice Bath
- Freezer Bags
Ingredients
Ingredients
- Onions any variety: yellow, red, or white
- Water for blanching (optional)
- Freezer bags or containers airtight
Instructions
Directions
- Peel the onions and remove any outer skins. Cut off the root end and the stem.
- Dice the onions into your desired size. Smaller pieces thaw quicker and are more versatile.
- If you choose to blanch, bring a pot of water to a boil. Add chopped onions for 2-3 minutes to preserve flavor and color.
- Immediately transfer blanched onions to an ice bath for the same amount of time to stop cooking.
- Drain onions thoroughly and pat dry with a paper towel to remove excess moisture.
- Portion the onions into freezer bags or containers, removing as much air as possible to prevent freezer burn.
- Label your bags with the date and type of onion, then place in the freezer.
Notes
- Blanching onions before freezing helps maintain flavor and texture.
- Use airtight bags to prevent freezer burn and preserve freshness.
- Frozen onions last 6-12 months; best used within 6 months for quality.
- Frozen onions can be added directly to cooked dishes without thawing.
- Avoid freezing whole onions as they develop unpleasant texture.
