The Danes call it “Dream Cake” (drømmekage). Leave it to Americans to define it not by its deliciousness but by how easy it is to make. Yet Busy Day Cake looks and tastes elegant, and would never let on that you threw it together between Zoom meetings. This velvety vanilla cake is so fluffy it would float away if it weren’t for the caramel coconut icing to keep it earthbound. America’s Busy Day Cake (also called things like “Lazy Daisy Cake”) has been passed down for generations, and this version comes from our college friend and baking inspiration Judith Schwartz Stalk. She remembers her mother Florence baking it in the early 1960’s when Judith…