Easy Ways to Preserve Onions
One of the staples in our kitchen is onions, and when the season for onions is in full-swing, it’s a challenge to come up with ideas on how to use them all. Rather than think of it as a race to consume, consider it instead an opportunity to preserve!
Here are some easy, low-fuss ways to preserve onions so they stay usable for months—or even years—depending on your method and storage setup:
1. Curing & Storing Whole Onions
- Best for: Pungent varieties like yellow or red onions
- How: Let onions dry for 2–3 weeks in a warm, airy space until skins are papery and necks are dry
- Storage: Keep in mesh bags or baskets in a cool, dark, well-ventilated spot (like a basement or garage) Turn them every so often to keep all sides for getting mushy
- Shelf life: Up to 8–12 months
2. Freezing
- Best for: Chopped onions or those starting to soften
- How: Chop and freeze in portioned bags or ice cube trays; no need to blanch
- Tips: Use vacuum-sealed bags to reduce odor and freezer burn
- Shelf life: 6–12 months
3. Caramelizing & Refrigerating
- Best for: Sweet or yellow onions
- How: Cook slowly until golden, then store in airtight containers
- Use: Great for quick flavor boosts in soups, sandwiches, or dips
- Shelf life: About 2 months in the fridge
4. Pickling
- Best for: Red onions or mild varieties
- How: Soak thin slices in vinegar, salt, sugar, and spices
- Storage: Refrigerate or water-bath can for longer shelf life
- Shelf life: 3 weeks (fridge) or 6+ months (canned)
5. Dehydrating
- Best for: All types, especially pungent ones
- How: Slice thinly and dry at 125°F until crisp
- Use: Store as flakes, rings, or grind into onion powder
- Shelf life: 10–15 years sealed; 6–12 months once opened
We’d love to know how you preserve your onions, so share your comments and tips below!
