These Sweet And Sour Onions Are Just What Your Palate Needs! [Recipe] |

These Sweet And Sour Onions Are Just What Your Palate Needs! [Recipe]

Store your onions for months by making this delectable sweet and sour onions recipe. Aside from garlic, onions are an absolute staple in any dish, so it only makes sense to preserve them so we can have them anytime we like, and this recipe will let you do that while adding incredible flavor to your onions.

Make These Delightful Sweet And Sour Onions For A Flavorful Preserve!

Want it sweeter or aromatic? No problem!

This is a fun recipe that you can easily customize to your taste. You can add or change the aromas, or adjust the degree of sweetness or sourness! For example, if you change the sugar, or make parts of it using brown sugar, it gives you a much different and distinct note to your palate.

Adding or reducing the sugar doses also gives you varying levels of sweetness or sourness. One very important thing to note though is that the vinegar can never be lower than the water, it must be either equal parts with the water or more of it. This is to ensure that there is no risk of botulinum.

Photo of text area that says "These Sweet And Sour Onions Are Just What Your Palate Needs!," followed by a photo of onions preserved in a clear glass jar

Aromas are another way of customizing the recipe to your taste, as it certainly gives you a different flavor if you add a sprig of rosemary or bay leaf. Or go nuts and add both for an absolutely awesome flavor!

Yummy onions!

Making this onion recipe is very simple and you just need a few things that you can definitely get from your pantry. First of them, of course, are the onions, they have to be the firmest and freshest you can get, as this allows us to get the best result from this preserve. Then we’ll need a vinegar with at least 6% acidity, as this removes the risk of botulinum. Then the water, sugar, and aromas.

To prepare them, first, we have to wash the onions thoroughly, then we’ll set them aside. Prepare the sweet and sour syrup next. To do that, just pour your water, vinegar, and sugar in your medium-sized saucepan and then bring it to a boil. Keep on stirring until the sugar dissolves completely and then add salt.

This is where we’ll blanch the onions to prevent botulinum risk. Blanch the onions for 2 minutes, then transfer them into jars that you’ve previously sterilized.

Pour your vinegar syrup into jars until the onions are covered, but make sure to leave an inch of headspace from the top edge to give contents space to expand when we process them later on.

Place spacers that you’ve also pre-sterilized, then cover the jar. Process them for 20 minutes, but make sure to adjust the time depending on your altitude. Once finished, check that it’s vacuum-sealed, then store them in the refrigerator and that’s it!

These onions go perfectly well with an exquisite platter of cold cuts, or any tasty cheese you have in your pantry.

Sweet and Sour Onions

Recipe by Gillian Lightman


  • 1 lb (450 g) spring onions, peeled

  • 1 3/4 cup (400 ml) white wine vinegar (6% acidity)

  • 1 1/4 cup (300 ml) water

  • 3/4 cup (90 g) white sugar

  • Peppercorn

  • salt


  • Wash onions thoroughly then set aside.
  • Bring vinegar, water, and sugar mixture to boil in a saucepan to create sweet and sour syrup. Stir until sugar dissolved.
  • Lightly salt and blanch onions for 2 minutes, then drain.
  • Place onions into pre-sterilized jars.
  • Let syrup cool completely, then gently pour into jars, leave 1-inch (2.5 cm) headspace.
  • Place pre-sterilized spacer and close jar.
  • Process for 20 minutes (Adjust for altitude).
  • Once cooled, check for vacuum seal.
  • Store in your pantry.