Stuffed Poblano Peppers

Name: Stuffed Poblano Peppers
Ingredients: 8 ripe Roma tomatoes, halved lengthwise; 1/2 cup extra-virgin olive oil; 1 tablespoon confectioners' sugar; 1 1/2 teaspoons red pepper flakes; Kosher salt; 2 tablespoons canola oil; 6 medium poblano peppers, halved lengthwise, ribs and seeds completely removed; 12 sprigs fresh thyme; 2 medium red bell peppers, seeded and finely diced; 3 large cloves garlic, minced; 3 medium yellow onions, finely diced; 6 sprigs fresh basil; 1 tablespoon red wine vinegar; 12 ounces mozzarella, cut into 1-inch cubes; 3/4 cup panko breadcrumbs, toasted; 1/2 cup finely grated Parmesan; 1/2 stick (4 tablespoons) unsalted butter, melted; 4 to 5 tablespoons aged balsamic vinegar