If you grind the pulp yourself, make sure not to use hard persimmons, the pie/pudding will come out sour. First you will mix the sugar with the pulp, then the eggs. Then mix the soda with the buttermilk in the same bowl. In a different bowl, sift all dry ingredients, the salt, flour, and baking powder. Add dry ingredients to the pulp batter little by little. Then add the vanilla. Melt butter in a bowl, then spread it evenly over the bottom of the pan. Put batter in pan. Bake a 325 for one hour. Baking time may vary depending on each stove.