1) Preheat oven to 325 degrees F.
2) In a blender puree prunes and the first 1/2 cup of water. When smooth add egg replacer powder and the second 1/2 cup of water. When thoroughly blended add sugar until combined.
3) In a bowl sift together the flour, cocoa, baking soda & powder, and salt.
4) Dump as much of the prune/sugar mixture into the dry ingredients as possible. Slowly add in half of the soy milk.
5) Pour the remaining milk into the blender to help remove the residual prune mixture. Pour remaining milk into batter.
6) Thoroughly spray your Budnt pan. Stir the vinegar into the batter and then pour into pan.
7) Bake for 1-1.25 hours or until done.