Recently made this for a family dinner and it was enjoyed by all (until they found out it was healthy that is). It is moist and light yet chcocolatey enough to satisfy your cravings. The secret to this cake is the moist and fluffy "frosting." Not only does it make a nice contrast to the buttermilk cake it keeps the dish from having that dry quality characteristic of non-fat baking. For that reason, it is best to let your finished cake fully chill, overnight if possible. The tablespoon of oil is optional and makes this a low fat not fat free option. The nutritionals given for this cake without the oil are 156 calories, 1.3g fat, 1.4g fiber, and 0g cholesterol.