Mix cocoa sugar cookie dough according to recipe directions.
Roll out and cut out cocoa sugar cookies into round shapes.
Bake cocoa sugar cookies according to recipe. Cool.
Prepare white chocolate royal icing. Separate a small amount and tint with black food coloring. Put black frosting into piping bag fitted with small tip.
Use knife to frost cookies with white frosting, then pipe black frosting in a circle pattern on the cookie. Draw toothpick from center of the cookie out to the edge at irregular intervals.
Enjoy these creepy cobweb cookies, infused with the flavors of cocoa and white chocolate.