Bake for 15 mins until light golden. To make the filling: Heat the marshmallows with the milk in a small pan over a low heat, stirring until smooth, and leave to cool for about 10 mins.. Whoopie pie cake the promised recipe - is dedicated to all who asked him to publish. Thanks for waiting. Of all the recipe recipes, I liked this simplicity and accessibility, which does not affect . 496 results for whoopie pie Save whoopie pie to get e-mail alerts and updates on your eBay Feed. Unfollow whoopie pie to stop getting updates on your eBay feed.. Try this classic whoopie pie recipe made with cocoa (it’s the pie pictured on the left) and make a delicious chocolate whoopie pie.. Whoopie Pie (20) 32 minutes. 19 reviews Bake 5-7 minutes. Allow to cool. Filling; Combine flour and milk in saucepan until thick. Let cool. Cream butter, sugar, salt and vanilla. Add flour mixture. Beat until creamy. Spread the base of one cake with filling. Sandwich together with a second cake on top. Similar Recipes. Chocolate Whoopie Pies Mincemeat Pie Bars Oysters (Raspberry Jelly and . Bake on the middle shelf of the oven for 10 to 12 minutes. Leave to cool on the trays for a few minutes, then transfer to a wire rack to cool completely. For the buttercream frosting, melt the white chocolate in a heatproof bowl over a pan of simmering water..