We used burrata cheese, which is a solid piece of mozzarella filled with creamy mozzarella curds. It can be found at specialty-food stores and some supermarkets. Sliced fresh mozzarella also works well.
Place Burrata in a dish, and break open with a spoon. Top with pickled hot cherry peppers. Drizzle with pickling liquid from jar and oil. Season with fleur de sel and pepper.