These Halloween Pumpkin cupcakes contain a secret: rainbow vanilla cupcake batter. Of course, you would never know that until you bit into them and tasted them in all of the vanilla buttercream frosted goodness. So, what makes them a Halloween pumpkin? The frosted decorations on the top of each, of course! The buttercream frosting is tinted orange (for the pumpkin face) and the features are “drawn” on in black frosting. A little green frosting is at the top of each face to create the illusion of a stem, or hair, depending on how you look at it!
Source Cake In A Cup