Last Saturday I made whoopie pies with my friends Olga and Jenna. Jenna is a professional baker. She made the cupcakes for our wedding and she understands lots of things I'm clueless about, like the difference between Italian buttercream and Swiss buttercream. So when I added whoopie pies to my culinary resolutions list, it made sense to hook up with Jenna over egg whites and butter. We made chocolate whoopie pies from Baked Explorations. The recipe is here.