Gooey Vanilla Cake Bars (St. Louis Style!)

Fun fact: this is my first post from an airplane! Although technology just frustrates me most of the time, I must admit that blogging from 35,000 feet above ground is pretty cool! On the way home from New York, my family and I are stopping in St. Louis, so I took it upon myself to explore its dessert attractions. I was certainly not disappointed, for although they might be best known for ribs and their Gateway Arch, my favorite one of their specialities is their St. Louis gooey butter cake!