Whoopie Pies are easy to make and very versatile, simply a pair of small sponge cakes glued together with a filling and, if desired, topping. Read More This entry was posted in Recipes , Sweet Recipes , Equipment and tagged whoopie pie , whoopie pies , dark chocolate , sponge cakes on 05/11/2010 by Patrick .. Fall in love with this easy recipe for whoopie pies. Two light discs of chocolate sponge sandwich a fluffy vanilla buttercream filling. Perfect for cake sales, packed lunch treats or making friends at the office!. KAISER 12-Cup Whoopie Pie Baking Pan 38 x 27 cm Creativ Very Good Non-Stick Coating Short Baking Time for Sweet and Savoury Recipes. The whoopie pie was moist and not overly sweet with great texture from the grated apple and the frosting complimented the pies perfectly. Of course, you could roll with your favorite buttercream as well and it would be equally delicious. I stored these in the fridge and then just took them out a bit before serving to knock the chill off since they had cream cheese frosting. I’m still not . . .