The whoopie pie is a nearly perfect food, if you ignore pesky little details such as calories or cholesterol. For those who love sweets, especially dark, devil s food chocolate cake and lush, creamy vanilla filling, the whoopie pie is the ultimate dessert. It s certainly not a pie, by any stretch of the imagination. But then, neither is a Boston cream pie. A traditional whoopie pie consists of two soft, mounded, dark chocolate cakes, each resembling the top of a well-rounded chocolate hamburger bun, generously filled with creamy white filling. Sometimes the filling layer is nearly as thick as the cake around it, making for a gooey eating experience that leaves fingers, faces, and everything within reach streaked with white stuff. And that s half the fun. There ends any agreement about what constitutes a real whoopie pie. Contains 16 recipes, including "healthy," gluten-free, and zucchini whoopie pies!