Ingredients
1 lb (4 sticks) unsalted butter
6 ounces blue cheese
Directions
In a large bowl, mash the butter with a potato masher or just squish it up with your hands. You can even cream the butter using the paddle attachment of a stand mixer — but the goal is just to get the butter soft so you can incorporate the blue cheese.
Add the blue cheese and continue mashing/squishing/mixing the butter until fully mixed.
Spread out a large (1-foot or bigger) square of plastic wrap across your work surface, then scoop the mixed butter onto the plastic. You are now going to roll the butter into a cylinder inside the plastic wrap
Tie the excess plastic wrap at the ends of the cylinder into a knot, or just use little pieces of string to tie off the ends. You can even make a string out of a short section of plastic wrap and rolling it into a little rope.
Chill or freeze until needed. Serve in thick slices atop a hot, freshly grilled steak.
From http://culinaryarts.about.com/od/buttersauces/r/Blue-Cheese-Butter.htm. Have not yet tried - found this one on the internet and marked it for future reference.
