Fit the K beater to the machine.

Line the loaf tin with parchment paper.

Pre heat the oven to 180ºC.

Add Ingredients 1 (butter, sugar) into the Mixer bowl.

Attach the Mixer bowl to the machine and fit the splash guard.

Mix on speed Max for 1 minute.

Scrape down the bowl.

Mix on speed Max for 2 minutes or until light and fluffy.

Add Ingredients 2 (eggs) into the Mixer bowl.

Mix on speed 3 for 3 minutes.

Add Ingredients 3 (flour, lemon zest, baking powder) into the Mixer bowl.

Mix on speed Max for 30 seconds.

Transfer the batter to the loaf tin.

Bake for 50 minutes at 180ºC.

Let cool.

Prick the warm cake all over the top with a skewer.

Add Ingredients 4 (lemon juice, sugar) to the small bowl.

Mix until combined.

Pour the contents of the small bowl over the top of the cake.

Leave in the tin to cool completely.

Serve.