Heat the oven to 175ºC/350ºF.

Grease and line with paper 2 x 8in baking pans.  Use pans which have solid bottoms preferably as this is a very thin mixture and it can leak out of loose bottom pans.

Sift dry ingredients into a large bowl.

Mix together eggs, milk, oil, and vanilla, and add to the dry ingredients

Beat for 2 minutes on medium speed.

Stir in boiling water. (Please note the batter is very thin.)

Pour into prepared baking pans and bake for 30-35 minutes.

Cool in pans for 10 minutes before removing onto a wire rack.

Decorate with either a chocolate ganache icing or soft buttercream icing