Admittedly, the witch joke at the beginning of the video may have been a little graphic, but that’s what I always think of when I hear the legend of how these cookies supposedly got their name. As the story goes, when these sweet treats first made their appearance, people that tasted them were so taken by the sheer awesomeness, that they went nuts and started running around shouting, “Whoopie!! Whoopie!!”
*you can adjust texture by adding more powdered sugar or milk
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Flour portioning note: It is critical to weigh the flour for this recipe to work as seen in the video. 10 ounces by weight is about 2 cups by volume, but because flour can become quite compressed in the bag or canister, portioning by cup is not very accurate. If you are not going to weigh, only add about a cup and a half of flour, proceed as shown, and if the batter seems too thin after mixing, add more flour, little by little, until you have the thick batter seen in the video.
Source recipe: https://foodwishes.blogspot.com/