Hash cake, as the name suggests, is a cake that contains a small amount of hashish. Hashish is basically a derivative of cannabis plant and is banned in several countries across the world due to its harmful effects. Hash cake is made in certain countries by combining a small amount of hashish also known as marijuana or ganja with flour, eggs and butter and baking in an oven. There was a time when Hash cake was popular all over the world but with the discovery of the harmful effects of hashish it has become less popular and is not consumed openly.