Angel Food Cake With Fluffy Blueberry Frosting

Ingredients

• 1 cup cake flour
• 1 ¼ cups superfine sugar, divided
• ¼ tsp salt
• 1 ½ cups egg whites (from 11 eggs)
• 1 tsp cream of tartar
• 1 tsp vanilla extract
• 1 cup blueberries, fresh or frozen
• 2 Tbsp fresh lemon juice
• 2 Tbsp water
• 6 Tbsp granulated sugar, divided
• 2 Tbsp cream cheese, softened
• 1 ½ cups heavy cream
• Fresh blueberries, for serving