Raspberry Swiss Roll Cake

Bahan-bahan (12 porsi)

• 1/3 cup confectioners’ sugar (plus more to garnish)
• ¾ cup all-purpose flour
• ½ teaspoon baking powder (aluminum-free )
• ¼ teaspoon fine sea salt
• 5 large eggs (room temperature)
• ¾ cup granulated sugar
• 1 teaspoon pure vanilla extract
• ½ cup raspberry preserves (plus 2 Tbsp water or as needed)
• 1 cup heavy cream (chilled)
• ½ cup granulated sugar
• 8 ounces mascarpone (chilled)
• 2 teaspoons pure vanilla extract
• 12 ounces fresh raspberries (divided)