1. Sieve the flour, baking powder and baking soda together.
2. Mix the ingredients together, add 75ml water and beat well.
3. Grease and dust a 6 inch diameter cake tin. Pour the mixture into the prepared tin and bake in the pre-heated oven at 400F for 10 mins. Thereafter reduce the temp to 300F and bake for a further 10 mins. Cool the cake.