These spooky Halloween monster sugar cookies with royal icing are fun, forgiving, and perfect for parties. The buttery vanilla cookie is soft-centered with crisp edges, and the royal icing sets up perfectly for decorating with googly eyes and sprinkles.
Don’t rush the drying process. Avoid refrigerating the cookies to set the icing; it can make the icing sticky. For best results, let the icing set at room temperature overnight. The dough can be made up to 3 days ahead and refrigerated, or frozen for up to 3 months. Undecorated cookies can be frozen for up to 3 months.
Keywords: Halloween cookies, monster cookies, sugar cookies, royal icing, spooky cookies, easy Halloween recipe, decorated cookies