Ingredients

Instructions

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