Peperonata (Stewed Sweet Peppers)

From "Saveur" magazine.

• Ready In: 1 hr 15 mins
• Yields: 2 cups

Ingredients

• 2  red bell peppers
• 1  yellow bell pepper
• 1  orange bell pepper
• 1⁄3 cup extra virgin olive oil
• 4  garlic cloves, sliced thin crosswise
• 1⁄2 medium  white onion, sliced thin
•  salt & freshly ground black pepper
• 3  tablespoons red wine vinegar

Directions

1. Core, seed, and cut peppers into 1/4 inch strips.
2. Heat oil in a 4 quart saucepan over medium high heat.
3. Add peppers, garlic, onions, 1/2 cup water; season with salt and pepper.
4. Cook, partially covered, stirring occasionally, until peppers are soft, about 1 hour.
5. Stir in vinegar, transfer to a serving bowl.