Bake Play Smile
Sift the cocoa powder, plain flour, bi-carbonate of soda and baking powder into a large bowl. Add the caster sugar and salt and mix to combine.
In a separate bowl, beat the vegetable oil, eggs, buttermilk, finely grated zest and orange juice.
Slowly add the dry ingredients and beat until smooth and creamy.
Pour mixture into the prepared tin and bake for 30-35 minutes or until a skewer inserted into the middle comes out with a few crumbs on it. Allow to cool before topping with ganache.
Slice and enjoy!