1: In a small saucepan, over medium heat, add the balsamic vinegar.
2: Bring to a boil, and then reduce the heat to a simmer.
3: Simmer the balsamic vinegar until it has been reduced by at least half.
4: Remove from heat and set aside.
5: On your serving dish, layer the watermelon, fresh mozzarella, and basil in any order that you wish.
6: Drizzle the extra virgin olive oil and balsamic reduction on top.
7: Sprinkle with sea salt and black pepper to taste.
8: Serve immediately and enjoy!
