Receta en español aquí
Before publishing another recipes which use caramelized onions, I wanted to publish this one about how to caramelize onions.
400 g onion (about two medium onions)
3 tablespoons brown sugar
1 tablespoon balsamic vinegar of Modena.
A pinch of salt
Extra virgin olive oil
Peel the onions, cut in half and cut every half in julienne.
Pour in a pan a good splash of extra virgin olive oil over medium heat, when the oil is hot enough add the onion and stir fry, stirring well. After a minutes sprinkle a pinch of salt to help the onions release water.
When onions are transparent, add brown sugar and stir well.
Lower the heat and continue slowly cooking, stirring frequently until the onions are caramelized, with a nice golden brown color (30-40 minutes).
At the end add the balsamic vinegar, stir one minute and remove from heat.