1. Preheat oven to 170C and line a 20cm standard loaf tin with baking paper (or a 20cm round cake tin can be used).
2. Mix together the egg yolks, half the sugar, salt, lemon zest and lemon juice
3. In a clean separate bowl, whisk egg whites and remaining sugar until stiff glossy peaks form. Careful not to over whisk or it will become grainy.
4. Gently fold egg white mixture with egg yolk mixture and place batter into prepared pan.
5. Bake for about 30 minutes or until center is fully cooked when tested with a knife or cake tester.

Lemon Glaze

1. Mix lemon juice and icing sugar together until fully combined.
2. Remove cake from tin while still warm and pour over glaze.