Caramelized Sherried Onions - cooking recipe

Ingredients

2 tablespoons unsalted butter
2 tablespoons olive oil
1 lb yellow onion, peeled and very thinly sliced
1/2 teaspoon fresh thyme, chopped
1/2 teaspoon fresh rosemary, chopped
1/4 teaspoon salt
1/4 teaspoon fresh ground black pepper
1/2 teaspoon brown sugar
1/3 cup sherry wine

Preparation

Heat the oil and butter over medium high heat till it stops sizzling.
Add onions and reduce the heat to medium-low.
Cook slowly, stirring occasionally, until golden brown and caramelized, about 30 minutes.
Add the thyme,rosemary, salt, and pepper, brown sugar and stir well to combine.
Cook for 5-15 more minutes.
Add sherry and reduce.