In a large sauce pan, bring the water to a rolling boil and add the kosher salt and the angel hair pasta. Cook until the noodles are just barely soft but still firm. (About 2 minutes less than the directions call for.) Drain the noodles and rinse under cold water to stop the cooking process. Allow as much water as possible to drain from the noodles before transferring them to a medium-sized serving bowl.
Toss the noodles in olive oil, then add the mozzarella, cherry tomatoes and basil leaves. Season with kosher salt and black pepper to taste.
Just before serving, drizzle the salad with the best quality balsamic vinegar you have. Enjoy!
Notes
Make this ahead of time and store in the fridge—just don’t add the balsamic vinegar until it’s time to eat.