Preheat oven to 350 degrees F.

Press cookie dough into a round cookie/pizza pan.

Bake for 18-20 minutes until lightly browned around the edges. Cool completely.

Remove the lid and foil from the can of white frosting and microwave it for 30 seconds until the frosting is pourable.

Stir well then pour the frosting over the cool cookie. Use the back of a spoon or a spatula to spread the frosting to about 1/4-inch from the edge of the cookie cake.

Use the black decorator icing to draw a spiral on top of the white frosting then use a skewer to drag the black icing out toward the edges of the cookie cake to look like a spider web.

Decorate the edges with Halloween sprinkles.

Add a plastic spider on top, if desired!