This Pickled Red Onion recipe is a great way to enjoy healthy onions without the intensity of a raw onion. You can put these on you sandwich, salads, tacos or even pasta. These will stay fresh for 1-2 weeks in an air tight container in the refrigerator.
Heat the red wine vinegar over low heat, and add the salt and sugar to dissolve. Add the red onion. Place in a large bowl and set aside. Allow to pickle for 30 minutes overnight.
Store in a covered container in the refrigerator. They will continue to pickle. Good for up to 2 weeks (if they last that long!)