 Peanut pie was originally considered slave food, but by the 1940s peanuts were widely consumed and an advertisement for corn syrup (used to make the sweet, sticky pie filling) claimed that peanut pies could “make even your deepest-dyed Yankee start complimenting you with a southern accent.” The pie was popular in Virginia and North Carolina.The sweet filling is made from corn syrup, sugar and eggs, similar to how pecan pie filling is prepared.Molasses, sorghum, pure cane syrup or maple syrup are sometimes used in place of corn syrup.