Blueberry Mascarpone Cake - Serving Dumplings

Ingredients

• ¾ cup all-purpose flour
• ⅓ cup potato starch
• ¾ cup sugar
• 4 eggs
• ½ tsp baking powder
• ⅛ tsp salt
• seeds from 1/2 vanilla bean
• 1 cup mascarpone
• 1 cup heavy cream
• ½ cup icing sugar
• 1 tbsp dried blueberry powder (optional)
• 3 tbsp blueberry jam
• 1 ¼ cups blueberries
• 2 tbsp grated dark chocolate (for topping)
• mint (for topping)