Yes, these cupcakes actually glow in the dark! How amazing is that? The first photo is of them glowing in the dark under a black light, and the second is without the black light, where they look green. These are simply ingenious and would make any kid's (or adult's!) Halloween very, very special. Get the recipe (which involves tonic water, powdered sugar and lime Jello!) and instructions at Hoosier Hommeade.