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!. 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.. £0.00 Add to Cart. Not Whoopie pie; Share on Facebook Twitter Google + Whoopie pie. Share on Facebook Twitter Google + 8-12p. 30 min . Ingredients . 1 ¼ cup of sieved flour ¾ cup of chocolate or cocoa powder ½ teaspoon of bicarbonate coffee Salt 9 soup spoons of melted butter 2/3 cup of brown sugar 1 egg For the filling: 4 soup spoons of softened butter (room temperature) 1 . Whoopie Pie Recipes Looking for whoopie pie recipes? Allrecipes has more than 20 trusted whoopie pie recipes complete with ratings, reviews and baking tips.. L.D. 71, officially known as "An Act to Designate the Whoopie Pie as the State Dessert", read "The whoopie pie, a baked good made of two chocolate cakes with a creamy frosting between them, is the official state dessert".. 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..