250gr sugar
250gr butter
250gr yoghurt
5 eggs
300gr all purpose flour
1 lemons zest
1 vanilla stick
2 teaspoons baking powder
1 teaspoon baking soda
In a medium sized bowl beat the butter with the sugar well and add the egg yolks and yoghurt stirring until the mixture is smooth. Mix flour baking powder baking soda and lemon zest. Separately beat the egg whites lightly. Pour the flour alterating with egg whites in the yoghurt mixture. Stir well and pour into a buttered baking pan.
Place in oven and bake at 150 C for 50-60 minutes.