Step 1

Preheat oven to 180°C. Grease a 5cm deep, 15cm x 23cm (base), 6-cup capacity baking dish. Using an electric mixer, cream butter and sugar in a bowl until light and fluffy. Add egg yolks, 1 at a time, beating well after each addition.

Step 2

Stir in lemon rind, 1/4 cup lemon juice, passionfruit and milk. Sift flour over mixture and stir until combined.

Step 3

Using clean blades, beat eggwhites in a bowl until soft peaks form. Fold into passionfruit mixture until just combined.

Step 4

Pour batter into baking dish. Place dish in a baking pan. Pour boiling water into pan so it comes halfway up sides of dish. Bake, uncovered, for 45 minutes or until pudding is just firm on top and light golden.

Step 5

Remove dish from baking pan and stand for 5 minutes. Dust pudding with icing sugar and serve.