4 large onions, thinly sliced 1/4 cup extra virgin olive oil 2 T balsamic vinegar 1/2 tsp. salt Heat the olive oil in a large skillet over medium heat. Stir in the onions and salt and cover. Cook for 5 minutes or until the onions have softened slightly. Uncover and sauté, stirring frequently, until tender and nicely browned. This should take around 20-25 minutes. Remove from the heat and stir in the balsamic vinegar. This can be served hot or cold. |