Dessert

Separate eggs into yolks and whites
Mash the ricotta and beat in the egg yolks
Stir in flour, sugar, cinnamon, lemon zest and rum until well combined
Beat the egg whites until stiff
Fold the beaten egg whites into the ricotta mixture
Butter and flour a 25cm cake tin
Pour the batter into the prepared tin
Bake at 350°F for about 40 minutes or until firm.
Dust with icing sugar and serve hot or cold