Cabernet Burgers with Caramelized Onions - Sutter Home Family Vineyards

Ingredients

• 1 tablespoon olive oil
• 3 tablespoons finely chopped shallots
• 2 cups Sutter Home Cabernet Savignon
• 2 tablespoons fresh lemon juice
• 2 teaspoons worcestershire sauce
• 1/2 teaspoon salt
• 2 teaspoons honey
• 1 tablespoon butter
• 2 cups thinly sliced sweet onions
• 2 pounds ground round
• 12 slices sourdough bread