Learning how to make pickled red onions is SO easy - it only takes five minutes and you probably have all the ingredients! You'll love having a jar of these in your fridge for tacos, avocado toast, and more!
1red onion, thinly sliced (use a mandoline if you have one)
1/2cupapple cider vinegar
1cuphot water(not boiling)
Slice the red onions as thin as you can. I use a mandoline but a sharp knife works well, too.
Stuff all the red onions in the jar of your choice. A bowl works too but a jar is easier to store in the fridge.
In a measuring cup, combine apple cider vinegar, salt, sugar, and warm water. Stir to dissolve the sugar and salt. Pour the pickling mixture over the sliced onions, making sure they are immersed in the liquid, and let them set for an hour.
After an hour, cover and store in the fridge for up to three weeks.
Other types of onions can be used instead of red onions.
Substitute maple syrup or honey for the granulated sugar if desired. For sweeter pickled onions, use more sweetener, for tangy pickled onions, use less.
If you prefer, substitute plain white distilled vinegar, rice vinegar, or white wine vinegar for the apple cider vinegar. A combination is fine, too.
Recipe is easily doubled. Make sure you have enough clean jars with lids. Sliced onions should be completely immersed in vinegar solution.