01 - Combine balsamic vinegar and honey in a small saucepan. Simmer over medium heat for 8-10 minutes, stirring occasionally, until reduced by half and syrupy. Remove from heat and set aside to cool.
02 - Slice fresh mozzarella cheese and use a small heart-shaped cutter to cut out hearts if desired. Slice tomatoes into equally thick rounds.
03 - Arrange tomato slices, mozzarella hearts, and fresh basil leaves on serving plates, alternating them in a circular or heart-shaped pattern.
04 - Drizzle olive oil evenly over the salad. Sprinkle with flaky sea salt and freshly ground black pepper to taste.
05 - Drizzle the cooled balsamic glaze over the salad just before serving. Serve immediately while fresh.