Find great deals on eBay for whoopie pie. Shop with confidence.. 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!. 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!. By definition a whoopie pie is a sandwich of soft, chocolate cakes with a fluffy filling, usually containing marshmallow in some form. They remind me of the prepackaged variety like Suzy Q’s and Little Debbies that I liked as a child.. . .