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Dear GF Gourmets:

All my daughter's sophisticated friends LOVED this birthday cake.  It
came wondrously close to the devil's food cake my mother used to make
from the 1922 Fanny Farmer cookbook--a taste that has remained like
Proust's madeleine in my memory of all that is wonderful about having a
birthday.
I made it in a Vitamix.  I'm sure any blender would do as well, or do it
by hand.

4 eggs
1/2 c. shortening (I used Crisco for the first time in a cake!!)
1 1/2c. buttermilk or sour milk (for non-dairy:  I used 1 1/2 c. water
   plus 3/8 c. soy powder and  2 tsp. cider vinegar)
1 tsp gf vanilla extract (or use vanilla'd sugar)
1 1/2 c. sugar (this is too much for my taste; I use about 1 c of
   vanilla  sugar, i.e., sugar in which a vanilla bean has been basking)
1/2 c. cocoa
1 1/2 tsp baking soda
1/2 tsp baking powder (use 2 tsp if you use non-wheat flour)
1/2 tsp Xanthan gum
1/2 tsp salt
3/4 c. corn starch,  1/4 c. potato starch, 1/3 c. each of peanut (or
   other nut flour) and sweet potato flour.  (Total of 1 and 2/3 cups flour)

Place eggs, shortening, buttermilk, vanilla, sugar and cocoa in
blender.  Blend 'til light and fluffy.  Stop machine, add other dry
ingredients, and blend, or mix in a bowl.
Bake till done (depending on the size and shape of the pan at   350
in a generously greased and floured pan.
I used a simple glaze of orange juice and confectioner's sugar.

Nancy in nyc