Tender chocolate cake with a luscious creamy filling is great in any form, but it's most fun of all in a whoopie pie. These little cakes are dressed in their Halloween finest with orange sashes made by rolling the creamy edges in bright orange nonpareils. More Halloween Recipes
The assembled whoopie pies can be refrigerated in an airtight container between sheets of wax paper for up to 3 days.
For ultra-dark, super chocolaty whoopie pies, substitute 2 tablespoons of black cocoa powder (available from kingarthurflour.com) for 2 tablespoons of the regular unsweetened cocoa powder called for here.