Dry the mozzarella and toss in bowl with the olive oil, Italian seasoning, garlic powder and kosher salt.
Thread each skewer as follows: cherry tomato, basil leaf (folded in half), mozzarella ball, basil leaf, cherry tomato. Place all skewers on a platter and drizzle with balsamic glaze. Serve immediately. Skewers can sit at room temperature up 2 hours (you can refrigerate leftovers but the basil can turn dark over time.). If making ahead, make no more than 3 hours in advance.