Coffee and Cream Pavlova

Name: Coffee and Cream Pavlova
Prep time: 30 min
Total time: 30 min
Cuisine: European, Eastern European, Australian
Ingredients: 3 large egg whites; 150 grams granulated sugar; 2 tsp cornstarch; 1 tsp vinegar (plain or apple cider); 1 tbsp (3 tsp) instant espresso powder; 1 pinch salt; 250 g (9 oz) mascarpone cheese; 250 mL (1 cup) heavy whipping cream (chilled ); 1 tsp vanilla extract; 1 tsp instant espresso powder; 2 tbsp granulated sugar; Fresh fruit, such as berries; chocolate curls