Bistro Burger with Avocado Vinaigrette - Sutter Home Family Vineyards

Ingredients

• ½ cup plus 1T. Colavita Extra Virgin Olive Oil
• ½ cup shallots, minced
• 1 cup Sutter Home Chardonnay
• ½ California avocado, cored and removed from skin
• 1 T. Grey Poupon Dijon Mustard
• ¼ cup flat leaf parsley
• 2 T. plus 1 teaspoon kosher salt
• 1 T. plus 1 teaspoon fresh cracked black pepper
• 2 lbs. ground chuck
• 1 ½ T dried herbs de provence
• 3 cloves garlic, minced
• 12 oz. thinly sliced prosciutto de parma
• Vegetable Oil, for brushing the grill rack
• 6 slices of Emmenthal cheese, Swiss cheese may be substituted
• 6 croissants, sliced horizontally
• 4 cups arugula leaves