Preheat oven to 175 degrees Celsius.
Beat the egg whites at low speed for 1 minute, then add the cream of tartar and increase to medium speed for 1 minute.
Add sugar to the egg whites, and beat until medium peak.
Beat the egg yolks until light. Fold in the rest of the ingredients and then the flour.
Fold the egg yolk mixture into the egg white mixture.
Pour the batter into a tube pan.
Bake at a very low shelf for 60 minutes.
Remove once time is up, and hang the tube pan over a wine bottle for 10 minutes.
Remove cake from pan and enjoy while it is still warm!