Pickled Red Onions

pickled red onions in a mason jar being lifted out with a fork

5 from 5 reviews

These tangy pickled red onions are the perfect topping to your dishes. So good you’ll be eating them straight out of the jar! 




  1. Peel and cut the red onion in half. Thinly slice into half moons using either a knife or carefully using a mandoline.
  2. In a small saucepan over medium/low heat, add the red wine vinegar, apple cider vinegar, water, maple syrup, kosher salt, all spice, and peppercorns. Stir and allow to heat through until the salt has dissolved, about 8-10 minutes.
  3. In a sealable mason jar, add the sliced onions, sliced garlic, and optional red pepper flakes. Carefully pour in the pickling liquid (I transferred it to a measuring cup before pouring for safety and less mess). Seal the jar and give it a good shake. Place in the refrigerator and allow to chill/pickle for an hour before enjoying.


Keywords: pickled red onions, pickling, red onion, pickled onion