They may not be the most attractive looking condiment, but I assure you they are one of the most delicious. I like to add them to patty melts, cheeseburgers, hot dogs, and grilled cheese; you can even toss them in an omelet. Simple to make, the hardest part is keeping an eye on them to make sure they don't burn.
2 large white or yellow onions, sliced into rings
about 2.5 Tbsp olive oil
1/2 tsp champagne vinegar (optional)
In a medium (preferably non-stick) pan heat the olive oil on medium high heat for a minute or so. Add the onion slices and cook for about 10 minutes, stirring occasionally. When the onion starts to turn a light or golden brown color, turn the heat down to low, and cook for about 25-30 more minutes, stirring them every once in a while to keep them from burning or sticking to the pan. Remove from heat and stir in the vinegar if you like a little extra pop. They can be served warm or at room tempertature