PREPARATION: In a bowl, whisk together the oil, vinegar and garlic. Season with salt and pepper. Add cherry tomatoes & toss together. Leave at room temperature. Can be prepared several hours ahead. Heat broiler. Place cheese on top of focaccia or half loaf of It. br ead (toasted) or slices of toasted bread. Place under broiler until cheese is melted and cru st is golden. Remove from oven and top with tomato mixture and basil. Serve immediately