I was finally able to stop into the Fransican Friars' Bakehouse in Bangor, ME. They are only open for a few hours a few days a week, the rest of the time they spend praying and doing other friarly things. But let's all take a minute and praise the lord for the friars' delicious goods. They make excellent bread and whoopie pies.
My aunt gave me a recipe book with their whoopie pie recipe in it. Now that I've tasted one and I know what I'm going for, it's safe to say I will soon be making whoopie -- pies. Maybe they'll even make it to a Stolen Goods table!