Bring the cream, 150 ml water, sugar and vanilla sugar to a boil. Mix the pudding powder with a little cold water and stir. Stir and simmer for 5 min. at low temperature. Boil the berry mixture with the sugar in 150 ml water. Mix the cornflour with a little cold water. Stir the cornflour into the berry mixture. Serve with vanilla sauce. Tip: Vanilla sauce tastes creamier if you whip it up with a hand blender beforehand.