Cut goat's milk ricotta into thin slices. Cut tomatoes into slices. Remove pit from black olives and cut olives into long slices.
Place ricotta slices on bread and top with tomato slices. Add a few olive slices and fresh basil leaves.
Sprinkle sandwiches with salt or fleur de sel and freshly ground black pepper. Finish with a drizzle of balsamic vinegar reduction and serve.
PRO TIP: You can buy balsamic vinegar reduction in stores or make it at home yourself. Place half a cup of balsamic vinegar in a saucepan and bring to a boil. Then, reduce heat and let it simmer on low for about 15-20 minutes, or until the liquids evaporate and the sauce thickens.