1Whisk together coffee, cocoa, sugar, oil, and vinegar.
2Add the flour and baking soda and mix until just combined.
3Pour into a lined cake tin and bake at 180 degrees Celsius for around 40 minutes, or until a skewer when inserted in the middle comes out clean.
4Mix together syrup ingredients until smooth. Pierce holes in the cake when it comes out of the oven and drizzle the syrup on while the cake is still warm.