I have a cookbook from Winnfield, Louisiana "The Dixie Cookbook". It was published before 1929; I am still trying to pin a date to it. The pecan pie recipe has the following ingredients: sugar, red karo,mashed pecans, eggs, butter size of walnut, and pinch of salt. This is the recipe my grandmother used for years. And it was delicious! I might have to make a pecan pie for Thanksgiving.