For the Sponge
- 4 large eggs , separated
- ¾ cups sugar
- 2 TBSP sugar
- ½ tsp vanilla paste or extract
- 1 tsp lemon paste or extract
- pinch Kosher salt
- ¾ cup All Purpose flour
- 4 TBSP melted butter , cooled
Blueberry Sauce & Rhubarb Filling
- 2 cups blueberries
- ¼ cup sugar
- 1 TBSP fresh lemon juice
- 6-7 cups rhubarb , cut into 1-2" pieces, stems and leaves removed
- ⅓ cup sugar
- ⅓ cup fresh lemon juice
- 2 TBSP fresh ginger grated
- 4 cups mixed berries- blueberries, blackberries, raspberries
Whipped Topping
- 1 cup heavy whipping cream
- 1 tsp vanilla paste
- 2 TBSP powdered sugar
Créme Anglaise Filling - see this post