These bars look as impressive as they taste, but they are deceptively easy to prepare. Featuring buttery pecans and fiber-rich dates, these bars are loaded with minerals, including magnesium, manganese, copper, and iron, and are teamed up with a homemade chocolate layer that’s bursting with antioxidants. Because they are a raw, no-bake dessert, be sure to serve these bars directly from the refrigerator or freezer for best texture.