Soft pavlova roll with liqueur mascarpone and berry compote

Name: Soft pavlova roll with liqueur mascarpone and berry compote
Prep time: 6 h 30 min
Cook time: 25 min
Total time: 6 h 55 min
Cuisine: Australian
Ingredients: 1 x 250g ctn mascarpone; 125ml cream; 18.00 gm icing sugar mixture; 20.00 ml Grand Marnier liqueur; 7 eggwhites; 375g caster sugar; 5.00 gm cornflour; 2 tsp white vinegar; Icing sugar mixture, extra, to dust; 75g caster sugar; 80ml water; 1 x 500g packet frozen raspberries, thawed; 2 x 250g punnets strawberries, hulled, thinly sliced; 1 x 150g punnet blueberries; 1 x 150g punnet raspberries