Cake: Preheat oven to 180 degrees C. Grease and line a 900g loaf tin.
In a large bowl combine the eggs and sugar then beat together until pale and creamy. Mix in the oil and yoghurt. Fold in the rest of the ingredients and pour mixture into prepared loaf tin.
Bake in the preheated oven for 25 to 30 minutes until a skewer inserted into the centre comes out clean. Remove from the oven.
Syrup: While the cake is cooking, make the syrup by bringing the water and sugar to the boil. Simmer for about 5 minutes before adding the lemon juice. Continue simmering for a further 3 minutes. Remove from the heat and allow to cool.
Pour the syrup over the cake and chill before serving.