Make Easy Sugar Cookies, cut into 4-inch circles. Make Royal Icing.

Separate Royal Icing into 2 small bowls. Leave one bowl of icing white; use black food coloring to dye icing in second bowl black. Load half of the piping-consistency white icing and all of the black icing into respective piping bags, both outfitted with small round tips (#2). Mix additional tablespoons of water into remaining half-bowl of white icing gradually, until it reaches a flooding consistency. Load flooding-consistency white icing into piping bag (no need to fit the bag with a metal tip; simply snip the tip of the piping bag to create a small opening, approx. 1/8 inch).

Outline perimeter of cookies with white piping-consistency icing. Let set for 1-2 minutes.

Flood cookies with white piping-consistency icing. Do not let dry; immediately use black icing to pipe three concentric circles radiating out from the center of the cookie. Use a toothpick to drag 8 lines out from the center of the cookie, creating a webbed effect. Let dry for 1-2 hours.