Whoopie Pie Recipes Looking for whoopie pie recipes? Allrecipes has more than 20 trusted whoopie pie recipes complete with ratings, reviews and baking tips.. 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 .. Heat oven to 180C/160C fan/gas 4 and line baking trays with parchment. Mix flour, cocoa, bicarb, sugar and a pinch of salt. Whisk the egg, oil and buttermilk together, then mix into dry ingredients with 75ml boiling water.. 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. Lightly butter the Whoopie Pie Tray and spoon the mixture into the 12 cups, dividing evenly. Bake at 180°C (160°C for a fan oven) until springy. Leave in the tray for a few minutes and then tip out onto a cooling tray.. 8/31/2009 Classic whoopie pie! The only thing I changed was omitting the egg whites from the filling and adding about 2 Tb. of milk and an extra 1/4 cup of powdered sugar..