Pour the balsamic vinegar into a small saucepan and bring to a gentle simmer over medium heat.
Reduce the balsamic vinegar, stirring occasionally, until it becomes thick and syrupy, about 10 minutes. Remove from heat and set aside to cool slightly.
Thread a cherry tomato onto a skewer, followed by a basil leaf, and then a mozzarella ball. Repeat until all skewers are assembled, about 2 centimeters apart.
Arrange the skewers on a serving platter, creating an attractive display.
Drizzle the balsamic glaze over the assembled skewers, letting it pool slightly for a glossy finish.
Sprinkle with flaky sea salt flakes, and if desired, lightly drizzle with olive oil and a small touch of honey for added richness and sweetness.
Serve immediately to enjoy the fresh, vibrant flavors and the appealing glossy appearance of the skewers.