Fermented Foods - Yucatán-Style Pickled Red Onions

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Fermented foods such as this Mexican red onion pickle, contain high amounts of friendly bacteria and digestive enzymes. Maintaining a healthy gut flora is beneficial in helping with our digestion and overall energy levels. Fermented foods may also improve the quality of your skin as many skin disorders such as acne may be traced back to the gut, so if suffering menopause acne why not give this recipe a try.

Red onions are rich in folate AKA Vitamin B9, beneficial for cardiovascular health. They also contain vitamins and minerals such as calcium, potassium, magnesium and vitamin C.

Pair it with quinoa dishes, on top of hearty soups, as a relish with summer BBQs and salads.


Makes approximately 0.4 litre

Prep time 30 mins to overnight

We adapted this recipe from the Clean Program

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  • 1tbsp sea salt
  • 1 large red onion, very thinly sliced lengthwise
  • 1tsp whole black          peppercorns
  • 1tsp dried oregano
  • 1tsp cumin seeds
  • 1 bay leaf
  • 3 cloves garlic, peeled and halved lengthwise
  • 350ml red wine or apple cider vinegar

Optional ingredients:

  • 1 sliced jalapeno or ½ teaspoon red pepper flakes
  • 1tsp yellow mustard seeds
  • 1tsp fennel seeds
  • 1 tbsp chopped coriander



  1. Place the sliced red onion in a Kilner jar.
  2. In a small pan, heat the vinegar along with black pepper, cumin, oregano, garlic, bay leaf and salt. Bring to a boil. Remove from heat.
  3. Pour the hot vinegar spice mixture over the red onion, allow to cool. Cover and place in the fridge for at least 5 hours or overnight before using. As the onions rest they should turn a bright pink colour. This will keep for up to two weeks in the fridge.

Other recipes in our fermented food series

Aubergine salad recipe