01 - Combine the 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 completely.
02 - Slice the mozzarella cheese and use a small heart-shaped cutter to cut out hearts, if desired. Slice the tomatoes into equally thick rounds.
03 - On each serving plate, alternate tomato slices, mozzarella hearts, and fresh basil leaves in a circular or heart-shaped pattern.
04 - Drizzle the olive oil evenly over the salad. Sprinkle with flaky sea salt and freshly ground black pepper.
05 - Drizzle the cooled balsamic glaze over the salad just before serving.