Bruschetta — Fresh, Flavorful Summer Appetizer

Ingredients

• 1½ lbs ripe tomatoes, (cored and diced (3 to 4 tomatoes))
• ¼ cup pitted Kalamata olives, (finely chopped)
• 2 teaspoons balsamic vinegar
• ¼ cup finely chopped fresh basil, (plus more for serving)
• ¼ teaspoon salt
• A few grinds freshly ground black pepper
• ½ cup extra-virgin olive oil, (divided)
• 1 good quality baguette, (cut into ½-in (13-mm) thick slices on the bias)
• 1 clove garlic, (halved lengthwise)