Preheat the oven to 400˚F. Spread half of the colored sugar on a piece of parchment paper. Place the puff pastry sheet on top of the sugar, sprinkle the remaining half of the colored sugar on top, and gently press the sugar onto the puff pastry. I like to wear disposable gloves for this step. If the sugar won't stick, moisten the dough with cooking spray.
Fold the short ends of the puff pastry twice to meet in the center of the dough. Then, fold one half over the other. At this point, you should have six layers. Cut the dough into slices and arrange them in opposite directions on parchment-lined baking sheets with the cut sides up.
Bake at 400˚F for 10-13 minutes. Allow the cookies to cool.
Melt the white candy coating in a small bowl in the microwave. Melt the chocolate chips and shortening in a second bowl. Dip one side of a cookie in the melted candy coating or chocolate, place it on a piece of parchment paper, and top with sprinkles. Repeat with the remaining cookies.
Video
Notes
Store in an airtight container at room temperature for 3-5 days or in the freezer for 1-2 months.