Sweet and Sour Onion Marmalade

From American Pie by Peter Reinhart
via teresacooks.com

1/4 cup olive oil

4 large yellow onions

1/2 cup sugar (you can use 3/4 cup if you want)

1/4 cup balsamic vinegar

1/4 tsp. salt

1/8 teaspoon freshly ground pepper


  1. use a food processor to thinly slice the onions (or if you’re really industrious - or lacking a food processor just do it by hand)
  2. Heat the oil in a large skillet over medium heat
  3. Add the onions and sautee for 20-25 minutes or until they begin to turn a light golden brown. . . you’ll need to stir them.
  4. Add the sugar and continue cooking and stirring for about 3 minutes until the sugar melts and begins to bubble
  5. As the onions turn a richer brown pour in the vinegar and stir it in. 
  6. Cook for a few minutes until the vinegar is a syrupy coating on the onions.   Your spoon will leave tracks when you stir it.
  7. Stir in the salt and pepper and let cool completely before using or serving
  8. Store in the refrigerator for up to 2 weeks