These are gratifying, deeply chocolaty cookies enlivened inside and out with bits of crushed hard candy. Either red and white peppermint swirl candies or canes, or red, cherry- or raspberry-flavored hard candies work well. For Christmas, peppermint candy is the obvious choice. For Valentine’s Day, go with cherry, raspberry, or other fruit-flavored hard candies for a festive look and taste. With the peppermint candy, it’s nice, though not essential, to enhance the dough with a little peppermint extract. For the fruit-flavored candy, use almond extract instead.
Tip: Note that you’ll need enough candies to yield 1/2 cup of 1/4 inch or finer pieces. While small bits add a pleasant crunch, larger candy bits tend to be very hard on the teeth and make the cookies tricky to eat. Also, keep in mind that the shards used to garnish the cookie tops go on at the very end of baking so they don’t overheat and run. And don’t skip the baking parchment; the candy in the cookies makes them prone to sticking.