Combine butter with the minced garlic scapes, in a bowl. Mix thoroughly, then add salt. Mix a second time ensuring the scapes are evenly blended with the butter. (You can use a stand mixer to mix the ingredients, if you prefer.)
Fold the entire mixture onto a sheet of clear plastic wrap.
Fold the plastic wrap over the butter (short ends in first) and begin to form the butter into a cylindrical roll with your hands.
After the butter is completely folded in the plastic, roll the mold to form your cylinder.
Wrap your compound butter roll in aluminum foil and store in the freezer. The foil will prevent the garlic aroma from leaking into the freezer and surrounding food. It will also keep your butter fresh.