Place the egg yolks, 4 tablespoons of sugar, vanilla sugar and 2 tablespoons of water in a metal bowl. Whip in a hot water bath with the whisk of the hand mixer until thick and creamy. Whip the cream in a cold water bath until cold
Whip the cream until stiff and fold into the cream. Pour the cream into 4 small moulds (each containing approx. 200 ml). Cover with foil and freeze for at least 5 hours
Peel 2 oranges so thickly that the white skin is removed. Cut out the fillets between the parting skins, collecting the juice. Squeeze 2 oranges
Caramelise 5 tablespoons of sugar in a saucepan. Deglaze with all the juice while stirring, bring to the boil. Season with cinnamon and liqueur. Add orange filets and let everything cool down
Remove the parfait about 10 minutes before serving. Turn out onto plates and arrange with oranges. Decorate