Barbecued Burgers with Sweet & Sour Red Onions - Sutter Home Family Vineyards

Ingredients

• 1 large egg
• 1/4 cup tap water
• 1/2 cup fresh plain bread crumbs
• 2 tablespoons tomato paste
• 1/2 teaspoon dried mint leaves
• 3/4 teaspoon salt
• 1/2 teaspoon freshly ground pepper
• 1 pound lean ground beef
• 1/4 cup fresh flat leaf parsley, finely chopped
• 2 teaspoons vegetable oil
• 1 cup peeled and sliced red onion rings
• 2 tablespoons light brown sugar, packed
• 2 tablespoons red wine vinegar
• 1/4 teaspoon salt
• 1/4 teaspoon pepper