Prepare a sheet of parchment paper large enough to wrap the butter completely.
Mix together the softened unsalted butter, finely chopped garlic, finely chopped coriander and seasoning.
Spoon the mixed garlic herb butter onto the lower third of the parchment in a long, even mound.
Use a spatula to gently shape the butter into a loose cylinder.
Fold the bottom edge of the parchment over the butter and begin rolling it forward, using the parchment to tighten the shape as you roll.
Once fully rolled, twist both ends of the parchment firmly in opposite directions.
Place the wrapped log on a flat tray to keep it straight and chill in the fridge overnight to allow the the butter to firm completely.
When ready to use, unwrap and slice into even cubes