01 - In a mixing bowl, combine the softened cream cheese, goat cheese, chopped chives, lemon zest, and black pepper. Stir with a spatula until the mixture is completely smooth and all seasonings are evenly distributed.
02 - Cover the bowl and refrigerate the cheese mixture for 10 minutes to firm up, which will make it easier to handle and shape.
03 - While the cheese chills, finely chop the pistachios and combine them with the crushed crackers if using. Spread the coating mixture evenly across a flat plate or shallow dish.
04 - Using clean hands or a small cookie scoop, portion the chilled cheese mixture into balls approximately 1 tablespoon each, rolling gently between your palms to achieve a uniform round shape.
05 - Roll each cheese ball in the pistachio coating, pressing gently on all sides so the nuts adhere firmly to the surface.
06 - Arrange the finished bites on a serving platter. Serve immediately at room temperature or refrigerate in an airtight container until ready to serve.