Drain and pat the mozzarella balls dry with a paper towel.
Thread a tomato onto a 4-inch skewer.
Fold a basil leaf and slide it on next.
Finish with a mozzarella ball at the base of the skewer.
Arrange skewers on a platter.
Drizzle evenly with olive oil and then the balsamic glaze.
Sprinkle with flaky salt and black pepper just before serving.
Notes
Assemble up to 4 hours ahead; store covered in the fridge.Always add the balsamic glaze last to keep the basil from wilting.Use a mix of red and yellow tomatoes for extra color.Ensure the mozzarella is cold for easier skewering.Flaky salt (like Maldon) makes a big difference in the final taste.