These little sandwich cookies start with an easy chocolate dough that’s rolled into a cylinder, chilled, and cut into coins. Once baked and cooled, they’re sandwiched around a fluffy vanilla buttercream flavored with crushed-up candy canes or peppermint candies. They make a fine addition to a Christmas cookie plate, or a welcome holiday hostess gift. And if peppermint isn’t your thing, leave it out—the cookies are just as tasty on their own!
For the filling: