- 1 lemon, zest peeled and flesh finely sliced
- 1 orange, zest peeled and flesh finely sliced
- 110g/4oz caster sugar
- 110g/4oz self-raising flour
- 125g/4½oz soft butter, plus extra to grease
- 1 free-range egg
- 2 tbsp honey, plus 1 tbsp extra
- Place the orange and lemon zests, sugar, flour, butter, egg and honey into a food processor and blend until a smooth sponge batter is formed.
- Grease a small oven proof bowl with butter and brush with the extra honey. Line the bowl with the orange and lemon slices.
- Pour the sponge batter into the lined bowl and cover with cling film.
- Place the bowl in a microwave and cook on full power for five minutes, or until the sponge is cooked through.