Step 1
In a medium bowl, cream together the butter and sugar until smooth. Gradually add the beaten egg and milk, ensuring the batter doesn't curdle. Sift in the flour and fold gently to combine. Transfer the mixture to a 500 ml microwave-safe bowl.
Step 2
Cover the bowl and microwave on full power for about 3 1/2 minutes, or until the pudding appears set when gently jiggled and the top is sticky. Serve hot.