Directions

1. Preheat oven to 350 degrees F. (325 for glass pan)
2. Grease an 8"x8" square baking dish. Measure the dry ingredients into the greased dish and blend lightly with a fork. With the back of the measuring spoon make two small indentions in the dry ingredients. With the back of a measuring cup make one larger indention.
3. In one of the small indentations pour 1 teaspoon vinegar, in the other small indentation pour 1 teaspoon vanilla extract. In the larger indentation add 5 Tablespoons vegetable oil. (I don't know why the wet ingredients are separated this way, but this is what the recipe called for so I always do it)
4. Pour coffee / water mixture over all and mix with a fork just until thoroughly blended. Place baking pan on the middle rack of preheated oven and bake for 35 minutes, or until toothpick inserted into the center comes out clean. (Mine always takes 40 minutes)
   
5. Bring cake out of oven and cool. Top with your favorite frosting, or just slice and enjoy the cake plain - great for the kid's lunchboxes.