Use these to garnish any dessert, such as our Milk-Chocolate Pudding Cupcakes, Tiramisu Ice Cream Cake, or Mint Parfait.
Melt chocolate with the shortening in a heatproof bowl set over a pan of simmering water, stirring occasionally.
Divide chocolate mixture between two 11-by-17-inch rimmed baking sheets; smooth with an offset spatula. Refrigerate until chocolate is set but not brittle.
Holding a sturdy metal spatula or a bench scraper at a 45-degree angle, scrape chocolate away from you to form curls. If chocolate is too brittle, let stand at room temperature 1 to 2 minutes. If too soft, refrigerate briefly. Curls can be refrigerated in an airtight container up to 2 weeks.