1/4tspchili flakes or cayenne powderoptional, for heat
Instructions
Prep the red onions by peeling the outer skin off and cutting off the ends. Cut the onion in half from the root end to the stem end. Then, slice the onions thinly using a sharp knife. Put them in a jar.
In a medium-sized saucepan, combine the water, white vinegar, apple cider vinegar, maple syrup or honey, salt, and chilli flakes (if using). Bring the mixture to a boil over high heat, stirring until the salt has dissolved.
Pour the pickling liquid over the onions in the jar, making sure they are fully covered. If necessary, add more vinegar or water to cover the onions.
Seal the jar or container tightly and let the pickled onions sit at room temperature for at least 30 minutes, or until they reach your desired level of tartness and flavor.
Notes
You can also refrigerate the pickled onions for up to 2 weeks. Enjoy!