Whoopie Pie Cake Recipe 2 cups of Marshmallow FLUFF (or you can melt some marshmallow along with a little bit of milk) 1 1/2 tsp of vanilla extract Cream the butter and the powdered sugar . #HowItsMade Mondays 9/8c on Science This Whoopie Pie factory has a variety of delicious ingredients that give these traditional treats their signature taste.. 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.. 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!. We are the UK’s number one food brand. Whether you’re looking for healthy recipes and guides, family projects and meal plans, the latest gadget reviews, foodie travel inspiration or just the perfect recipe for dinner tonight, we’re here to help.. To make filling: Beat cream cheese and butter with an electric or stand mixer to combine. Add powdered sugar, almond extract and Amaretto. On a low setting, beat until sugar starts to combine..