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!. 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!. The Wilton Nonstick 12-Cavity Whoopie Pie Pans should be filled with 1/8 cup (2 Tbsp) of batter per shell, and the 24-cavity mini pans take half that much batter. So you may get fewer, or more, than 36 filled pies out of this recipe Also, although they freeze beautifully, if you don't want to bake that many, you can cut the recipe in half.. Whoopie Pie Recipes Looking for whoopie pie recipes? Allrecipes has more than 20 trusted whoopie pie recipes complete with ratings, reviews and baking tips.. Find great deals on eBay for whoopie pie baking pan. Shop with confidence.. Bake in the oven for 8–10 minutes, or until a skewer inserted in the thickest part comes out clean. Leave the whoopie cakes to cool on the trays. Meanwhile, to make the buttercream, beat the butter, icing sugar, and cocoa powder together in a bowl until light and fluffy, then beat in the milk..