15 reviews of Makin' Whoopie Pies "Wow, a blast from (I think) amish country of Pennsylvania has hit the main drag in Rehoboth Beach! High splurge factor for those of is watching the calories! A huge scoop of decadent frosting between two cake…. 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!. Find helpful customer reviews and review ratings for Exultimate Whoopie Pie Baking Tray at Amazon.com. Read honest and unbiased product reviews from our users.. #HowItsMade Mondays 9/8c on Science This Whoopie Pie factory has a variety of delicious ingredients that give these traditional treats their signature taste.. 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.. 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"..