Black Magic Cake

1 3/4 c. unsifted flour           
2 c. sugar                                
3/4 c. cocoa                            
2 t. baking soda                          
1 t. baking powder                       
1 t. salt
1 t. vanilla
2 eggs
1 c. strong coffee
1 c. sour or buttermilk
1/2 c. oil

Directions
Preheat oven to 350 degrees
Combine dry ingredients in large bowl.  Add remaining ingredients, beat at medium speed for 2 minutes.  Batter will be thin. Pour into a greased and floured 9"X13" pan.
Bake for 35 to 40 minutes