Lorraine Pascale served up a chocolate orange and vanilla sponge (Crouching Tiger, Hidden Zebra Cake) on Lorraine’s Fast, Fresh and Easy Food.
The ingredients are: 250ml sunflower (or other flavourless) oil, plus extra for greasing, 250g caster sugar, 100ml semi-skimmed milk, 4 medium eggs (at room temperature), A few drops of vanilla extract, 300g self-raising flour, 1 tsp baking powder, 25g cocoa powder and 1 orange.