Nigella Larsen "Onion Trick"

Slice a red onion thinly.  Add one tablespoon of oregano and one tablespoon of red wine vinegar.  Then, add 7 oz. of olive oil. Let ingredients seep into onions for about 2 hours and serve atop lettuce, feta, olives, and tomatoes.  We also just used Newman's Own Balsamic Vinaigrette. HA.  This little secret not only mellows out the flavor of the red onion, but turns it a beautiful pink color.