1 large onion
1 tbsp olive oil
Salt & pepper
1 tbsp balsamic vinegar
Peel onion, cut into quarters. Slice the quarters so you end up with "half moons".
Heat the olive oil on med high on a heavy skillet. Add the onions, salt and pepper. Stir for two minutes. Turn heat down to lo and cook for approx 20-30 minutes, stirring often.
When the onions have reduced by half, add the balsamic vinegar and cook for one more minute. Remove from heat and serve on whatever suits your fancy.
