Caramelized Peppers & Onions

Bahan-bahan (4 porsi)

• 2 tablespoons extra virgin olive oil
• 1 large yellow onion, (peeled and sliced into ¼-inch (6-mm) strips)
• 4 bell peppers (stemmed, seeded and cut into ¼-inch (6-mm) strips)
• ½ teaspoon salt
• ½ teaspoon freshly ground black pepper
• 2 teaspoons balsamic vinegar
• 1 teaspoon fresh thyme (finely chopped (or ½ teaspoon dried thyme))