INGREDIENTS
1 cup
(240ml) champagne*
1 cup
sifted cake flour*
1 tsp
baking powder
1/2 tsp
salt
4
large eggs, at room temperature and seperated
3/4 cup
granulated sugar, divided
1 tsp
pure vanilla extract
1 cup
confectioners' sugar, plus extra for topping
optional: 1 Tablespoon unsweetened natural or dutch-process cocoa powder
1
and 1/2 cups (360ml) heavy cream
1/3 cup
(40g) confectioners' sugar
1 tbsp
reduced champagne (from step 1)
1/2 tsp
pure vanilla extract