How to Make Caramelized Onions

Bahan-bahan (8 porsi)

• 6 large onions (approx. 2 pounds, any kind, I prefer white onion)
• 3 tablespoons unsalted butter
• 1 tablespoon olive oil
• ½ tablespoon brown sugar (optional, see note)
• salt (to taste)
• 3 pounds onions (sliced)
• ½ cup unsalted butter
• ½ teaspoon salt