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!. Whoopie Pie Cakes by Myrna (not sure about the spelling of Whoopie) Please feel free to correct for me! I like how they have a small wedding cake at the top so they can cute into it for traditional purposes.. Ever heard of a whoopie pie? They're a bit like a macaroon but with a more cake-like texture. Hugely popular Stateside, the name comes from when Amish women would put them in farmers' lunchboxes and they'd supposedly shout 'whoopie' if they found one in their box!. 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.. Cooking Recipes / Chocolate Whoopie Pie Cake . Chocolate Whoopie Pie Cake is a delicious spin on the classic whoopie pie! A dense chocolate cake filled with a soft and pillowy marshmallow filling . Chocolate whoopie pies are an American favourite that you can now create at home with this easy to follow, delicious and simple recipe from Jamie Oliver..