Bake the cupcakes and allow them to cool completely.
If you are making homemade frosting make that while you are letting the cupcakes cool.
Leave out 1 cup of frosting if you are making homemade and color it black, leaving the rest of it white.
Pipe a circle around the top of the cupcake with the frosting.
Place an Oreo on top, in the center of the frosting.
Pipe 8 “spider legs” on each cupcake with the black icing.
Using a small piping bag add a spot of frosting on the back of each candy eyeball and add it to the top of the Oreo Cookie.