Platter: On a serving platter, layer a tomato slice with a mozzarella slice on top of that and then fresh basil. Repeat until you have used all the tomatoes, cheese, and basil.
Oil + Balsamic Vinegar: Drizzle with 1-2 tablespoons extra virgin olive oil and 1-2 tablespoons balsamic vinegar (or a sweet balsamic glaze for something a bit sweeter).
Serve: Sprinkle with sea salt (kosher salt works too) and fresh cracked pepper.
Notes
Make Ahead: this can easily be made ahead for a party just layer and cover with foil. Store in refrigerator for a few hours or overnight. Add olive oil and balsamic vinegar right before serving.
Tomato: feel free to use whatever variety of tomatoes available to use, but I like to try and grab tomatoes that are the perfect size, similar to the size of mozzarella slices.
Best Olive Oil: this is one of those recipe where I would highly recommend using high-quality extra virgin olive oil since you will taste it quite a bit - you don't want something too over-powering.