Add 30g of the sweetner and all the flour in a bowl. Squeeze the juice of 1 lemon into the mix
Using a hand grater, grate both lemons and add the zest to the mix
Separate the egg yolkes from the whites. Keep the whites aside.
Beat the yolkes and add to the mixture.
Whisk the egg whites until they are fluffy and form soft peaks
Fold into the mixture and then add to a cake tray
Bake for 20-30 minutes on 180c until golden brown, allow to cool a little
Mix the juice of the second lemon and 15g sweetner, pour over the top of the cake and bake for another 10 minutes until the top of the cake is beautifully glazed