caramelized onions.

Every once in a while, I'll caramelize an onion or two and use it all week - they are perfect for paninis, salads, pizzas, etc.  It doesn't take much just an hour on the stove in the afternoon....   Since I work Saturdays and have Mondays off, I usually make a mess in my kitchen Monday afternoons between dinner and a couple things for lunch during the week. 

caramelized onions.

1-2 onions, peeled and chopped

drizzle olive oil

drizzle balsamic vinegar

salt and pepper to taste

sprinkle of sugar

Heat olive oil in a shallow pan (with a lid) over low heat.  Add onions and remaining ingredients, stirring to combine.  Cover and cook for about an hour over low heat.  Remove from heat and transfer onions to an airtight container and keep chilled.