Provincial Burgers with Nectarine Ketchup - Sutter Home Family Vineyards

Ingredients

• 2 pounds ground sirloin
• ½ cup chopped nectarines plus 3 nectarines, peeled and chopped
• 1 cup chopped black olives
• ¾ cup chopped purple onion, divided
• 3 cloves chopped garlic, divided
• 1 teaspoon each oregano, thyme and rosemary
• 1 tablespoon sofrito (Spanish cooking sauce)
• 6 whole wheat pita bread halves
• Red leaf lettuce
• 1 teaspoon ginger, chopped
• ¼ cup water
• ¼ cup brown sugar
• ¼ cup raspberry vinegar
• ½ teaspoon sea salt