4. Spread a scoop of softened ice cream onto the back side of one cookie with a large spoon, then sandwich a second cookie on top. Scrape off any ice cream that oozes out the sides, then immediately wrap the sandwich in waxed paper like a present, and tie it with in a bow with a ready piece of twine. It's important to work fast here, since the ice cream will keep oozing until it's in the freezer. Repeat until there's no more cookies left, stashing each sandwich in the freezer as you go. Let freeze at least 6 hours before serving. The sandwiches will stay fresh in the freezer for up to 10 days, but it's difficult not to eat them all before then.