Caramelized Onions Recipe

Ingredients

• 4 large onions (yellow or sweet onions are best)
• 2 tablespoons olive oil
• 1 tablespoon unsalted butter
• 1 teaspoon salt
• 1 teaspoon sugar (optional)
• 1 tablespoon balsamic vinegar (optional)

Instructions

1. Peel the onions and slice them thinly (about 1/8 inch thick).
2. In a large skillet, heat olive oil and butter over medium heat until the butter melts and starts to foam.
3. Carefully add the sliced onions to the pan. Stir them gently to coat with the oil and butter.
4. Sprinkle the salt and sugar (if using) over the onions.
5. Reduce the heat to medium-low and cook the onions, stirring occasionally for about 30 to 40 minutes.
6. If desired, add balsamic vinegar during the last 5 minutes of cooking.
7. Check for doneness; the onions should be soft, caramelized, and deeply golden brown.
8. Remove the skillet from heat and let the onions cool.