In a medium bowl, combine the softened butter with your chosen fresh herbs, minced garlic (if using), salt, and pepper. Ensure the butter is soft enough to mix easily but not melted.
Using a spatula or spoon, thoroughly mix all the ingredients until they are well incorporated. Aim for an even distribution of herbs and seasonings throughout the butter.
Lay out a sheet of plastic wrap or parchment paper on your counter. Spoon the butter mixture onto the center of the wrap.
Shape the butter into a log, about 1.5 to 2 inches in diameter, by rolling the wrap tightly around it. Twist the ends of the wrap to seal the log securely.
Refrigerate the compound butter for at least 1 hour to allow it to firm up. Once firm, you can slice it into discs for serving or keep it as a log.