Mario Batali Caponata Sub Recipe Enough Said

Name: Mario Batali Caponata Sub Recipe. Enough Said.
Ingredients: 1/4 cup extra virgin olive oil, plus more as needed; 2 cloves garlic, halved; 1 large Spanish onion, cut into 1/2-inch dice; 2 ribs celery, cut into thin 1/4-inch slices; 2 teaspoons fresh thyme, chopped; 2 medium eggplant, cut into 1/2-inch cubes (about 4 cups); kosher salt; 1 (6-ounce) can tomato paste; 1/4 cup dried currants; 1/4 cup pine nuts; 1 teaspoon ground cinnamon; 1 teaspoon unsweetened cocoa powder; 1 tablespoon red pepper flakes; 2 tablespoons red wine vinegar; 2 teaspoons sugar; freshly ground black pepper; 1/4 cup water; 1 baguette, cut into 4 pieces, split open to stuff; 1/4 cup Pecorino Romano, freshly grated; 1/4 pound provolone, grated