Today, ten thousand years later, humans have learned to make one of the most delectable all-American dishes, the Pecan Pie, with its rich, dark, custard-like filling and heavily encrusted, crunchy pecan topping. The pie has seen a number of experiments, with a wide variety of additions like chocolate, molasses, bourbon, sweet potato, cinnamon apples, vanilla, maple syrup, and even a scoop of vanilla ice cream on the top.