Mix, 1.5c flour, 1/3c coco, 1 tsp baking soda, 1/2 tsp salt, 2/3c caster sugar.

In a separate bowl mix, 1/2c veggie oil, 1 cup strong black coffee, 2 tsp vanilla ess.

Poor wet ingrediants into dry and whisk well. Add 2tbs of vinegar and whisk together quickly as mixture will froth.

Poor into greased 20cm cake tin, bake at 180c for half an hour..