Siciliano Burger with Fresh Ciliegine and Sweet Tomato Butter - Sutter Home Family Vineyards

Ingredients

• 3/4 cup sun-dried tomatoes packed in olive oil
• 2 tablespoons oil from sun-dried tomatoes
• 1 teaspoon mild honey
• 1/2 cup red flame seedless grapes (substitute green grapes, if necessary)
• 2 tablespoons plus one teaspoon brine-packed capers, rinsed and drained
• 1/2 cup fresh flat-leaf parsley leaves, chopped
• Salt
• Freshly ground black pepper
• 1 pound ground veal
• 3/4 pound ground beef
• 4 garlic cloves, minced
• 1/2 cup fresh Italian bread crumbs
• 1/4 cup pine nuts
• 1 teaspoon ground cinnamon
• Large pinch of ground cayenne
• 1 teaspoon dried rosemary, ground in spice grinder
• 1 teaspoon kosher salt, or more to taste
• 6 ciliegine (1/3-ounce fresh mozzarella cheese balls)
• Vegetable oil, for brushing on the grill rack
• 12 radicchio leaves, trimmed to fit the bread
• Oil from sun-dried tomatoes, for brushing on the radicchio
• 6 (3 by 4-inch) pieces Italian bread, preferably rosemary-semolina bread, halved lengthwise