Vanilla-Citrus Naked Wedding Cake Recipe | Dan Langan | Food Network

Ingredients

• 10 cups (2 1/2 pounds) confectioners' sugar
• 3/4 cup plus 2 tablespoons pasteurized egg whites
• 1 tablespoon vanilla extract
• 1/4 teaspoon kosher salt
• 2 pounds unsalted butter, at room temperature
• Nonstick cooking spray
• 8 1/4 cups (990 grams) cake flour
• 6 cups (1200 grams) granulated sugar
• 2 1/2 tablespoons baking powder
• 1 tablespoon salt
• 3/4 teaspoon baking soda
• 4 1/2 sticks (18 ounces) unsalted butter, melted and cooled
• 3 cups (720 grams) sour cream, at room temperature
• 1 1/2 cups (330 grams) buttermilk, at room temperature
• 1 1/2 cups vegetable oil
• 9 large eggs plus 3 large egg yolks, at room temperature
• 3 tablespoons vanilla extract
• Zest of 6 oranges
• Sugar flowers, for decorating