Prep the tomato and cheese. Add a slice of tomato to a plate, then add a slice of mozzarella on top. Keep alternating slices of tomato and mozzarella until you've used up all of the ingredients.
Add the basil. Place fresh basil leaves in between the layers. I prefer smaller basil leaves to keep them whole, but if you have large basil leaves you can cut them up.
Finishing touches. Drizzle olive oil and balsamic reduction on top. Sprinkle with salt and pepper, then serve immediately.
