Bocconcini Eyeballs with Blood Salsa

Name: Bocconcini Eyeballs with Blood Salsa
Ingredients: 8 large green olives stuffed with pimento, sliced into 1/4-inch discs; 16 bocconcini cheese balls; 8 slices prosciutto di Parma; 1 can whole San Marzano tomatoes; 3 tablespoons extra-virgin olive oil; 1 1/2 teaspoons brown sugar; 1 teaspoon salt; 1 teaspoon aged balsamic vinegar; 1/2 teaspoon dried Greek oregano; 1/4 teaspoon hot chili flakes; Freshly cracked black pepper; 2 cloves garlic, minced; 1 handful fresh basil, finely chopped; 1 red onion, minced; 1 handful fresh flat-leaf parsley, finely chopped; Crostini, for serving