Another recipe from the "Oregon Fruit Products" web site. Also didn't make it yet, but it sounds so good I know I won't resist it... If you try it before I do, would you let me know if you like it?
Blend sugar and oil, add eggs and beat well. Sift all dry ingredients together and mix into batter alternately with buttermilk. Stir in nuts, plums and vanilla.
Pour into ungreased 9X13 pan and bake 1 hour at 300°F
BUTTERMILK ICING: Mix ingredientsin saucepan. Bring to a boil and cook until it forms a soft ball, about 15 minutes. Upon removing cake form oven, poke holes in top with a fork and pour the hot buttermilk icing over it immediately.