In a medium bowl, combine the softened butter, Dijon mustard, parsley, chives, tarragon, lemon juice, Worcestershire sauce, garlic powder, and onion powder.
Use a fork or a spatula to mix the ingredients until well combined and smooth.
Season with salt and pepper to taste.
Place the mixture onto a sheet of plastic wrap and roll it into a log shape. Twist the ends to seal.
Refrigerate for at least 1 hour to firm up the butter.
Once chilled, slice the butter into rounds and serve on top of hot grilled or pan-seared steak.