Steamed Lemon Pudding

Serve this light lemon pudding with cream or custard.  Lemon curd could be added as well.

150g (5 oz) butter, softened
3/4 cup caster sugar
2 large lemons, rind finely grated
1/3 cup lemon juice
2 eggs, at room temperature
1 1/2 cups self raising flour
cream or custard to serve

Grease a 6 cup capacity pudding basin (I use canola oil spray).
Using an electric mixer, beat butter, sugar and lemon rind until light and creamy. 
Add eggs, one at a time, beating well after each addition.
Sift flour over the mixture.  Add the lemon juice.  Fold until just combined.
Spoon batter into basin, smooth the surface.  Cover the basin with foil, and secure with string.
Place the pudding into a large saucepan.  Pour boiling water into the saucepan so it comes halfway up the side of basin.  Cover saucepan and simmer pudding over medium heat for 1 1/2 hours, adding more boiling water if needed.
Lift pudding out of saucepan.  Remove foil and string.  Turn pudding onto a warm plate.  Cut into wedges and serve with cream or custard.