#HowItsMade Mondays 9/8c on Science This Whoopie Pie factory has a variety of delicious ingredients that give these traditional treats their signature taste.. Take one half of your whoopie pie and place a heaped tablespoon of filling on it, then place the other half of your pie on and squish together very slightly. Repeat until you have 12 sandwiches. Whoopie pies will keep in an airtight container at room temperature for 2 days, or in the fridge for 4 days.. Good Housekeeping’s whoopie pie opts for the marshmallow-style filling for its chocolate cake-like cookies. It yields about 12 rich cookie sandwiches and is a wonderfully portable dessert choice.. In this article, I demonstrate why actual whoopie pie baking pans are way better thank using cookie sheets. Includes recipes for making delicious chocolate, chocolate mint, and pumpkin whoopies. Includes recipes for making delicious chocolate, chocolate mint, and pumpkin whoopies.. Whoopie Pie Recipes Looking for whoopie pie recipes? Allrecipes has more than 20 trusted whoopie pie recipes complete with ratings, reviews and baking tips.. Chocolate Chip Cookie Dough Whoopie Pies, Chocolate Whoopie Pies filled with an egg free cookie dough filling..