---------- Recipe via Meal-Master (tm) v8.02
  Categories: Desserts, Low-fat
       Yield: 14 servings
       1 c  Sifted all-purpose
            Unbleached flour
     3/4 c  Sifted stone-ground whole
            Wheat flour
     1/2 c  Unsweetened cocoa powder
   1 1/2 ts Baking soda
     1/4 ts Salt (optional)
       1 c  Granulated sugar
     1/4 c  (plus 2 tablespoons lightly
            Packed brown sugar
       1    Medium baking potato, 4 oz.,
            Peeled and quartered
       1 pt Nonfat plain yogurt or
            Nonfat sour cream
       2 tb Mild honey
     1/4 ts Vanilla extract
     1/4 ts Chocolate flavor (optional)
     1/3 c  Canola oil
       3 lg Egg whites, at room temp
   Preheat oven to 350F.  Grease a 12-cup Bundt pan and dust with unsweetened
   cocoa powder.  Over a large bowl, sift both flours, cocoa powder, baking
   soda, and salt.  Mix in both sugars until there are no lumps.  Set aside.
   Put the peeled potato into a large food processor.  Using the steel blade,
   process the potato until finely minced.  Drain the yogurt of all excess
   liquid.  Discard excess liquid.  Add the drained yogurt, honey, vanilla,
   chocolate flavor, and vegetable oil to the minced potato in the food
   processor and mix on high for 60 seconds.  Be sure to scrape the sides of
   the bowl while processing.  Pour this mixture into the bowl of dry
   ingredients and beat with an electric beater on high for 60 seconds.  Be
   sure to scrape the sides of the bowl while beating.  Clean and dry the
   beaters well.
   In another bowl, beat the egg whites until soft peaks form.  Fold the egg
   whites into the batter until everything is mixed well.  Pour the batter
   into the prepared Bundt pan.  Bake in a preheated oven for 55 to 65
   minutes or until a cake tester comes out clean.  Remove the cake from the
   oven and let cool for 25 minutes.  Do not be concerned if the cake falls
   slightly.  Using a knife, go around inside and out side edges of cake.
   Invert the Bundt pan over a plate and carefully shake the cake loose.  Let
   the cake cool completely and frost with a chocolate glaze.