1. In your food processor, add herbs and pulse until well chopped. Add butter in chunks, processing until fully mixed.
2. Lay out a long sheet of plastic wrap (about 12 inches), and scoop the butter into the center, making a somewhat log shape. Wrap the plastic wrap up on the sides, and then squeeze butter into log shape. Twist ends, place in freezer or fridge and use as desired.
Recipe Notes
I have had this in my friend for up to 2 weeks before we used it all, and it was still good. Use whatever herbs you have leftover!