Kalamata and Feta Stuffed Greek Taverna Burgers with Balsamic Mayonnaise - Sutter Home Family Vineyards

Ingredients

• Balsamic Mayonnaise:
• ¼ cup Sutter Home Cabernet Sauvignon
• ¼ cup Balsamic vinegar
• 1 whole clove garlic
• 1 teaspoon olive oil
• pinch of coarse kosher salt
• pinch of black pepper
• ¼ cup mayonnaise
• Kalamata and Feta Stuffing:
• ½ cup whole pitted Kalamata olives, coarsely chopped
• 1 tablespoon olive oil
• juice of ½ small lemon
• ¼ teaspoon fresh tarragon, coarsely chopped
• 3 ounces Greek feta cheese, crumbled
• Patties:
• 2 pounds 80/20 ground chuck
• 2 teaspoons coarse kosher salt
• ¼ teaspoon cinnamon
• ½ teaspoon oregano
• ½ cup fresh parsley, chopped
• ½ medium yellow onion, diced
• ¼ cup tomato paste
• splash Balsamic Vinegar
• Olive oil, for brushing grill rack
• 6 Ciabatta rolls, halved lengthwise
• 1 ½ c. romaine lettuce, chopped
• 6 yellow onion slices
• 6 large tomato slices