Fresh Orange Layer Cake

Bahan-bahan (12 porsi)

• 3 cups cake flour
• 3 teaspoons baking powder
• 1/2 teaspoon salt
• 1½ cups granulated white sugar
• 3/4 cup shortening
• 3 large eggs
• 1 tablespoon grated orange zest
• 1/2 cup freshly squeezed orange juice
• 2/3 cup milk
• 1/2 cup (1 stick) salted butter, (at room temperature)
• 2 teaspoons grated orange zest
• 1/8 teaspoon salt
• 1 large pasteurized egg yolk ((see recipes Notes below))
• 16 ounces powdered sugar
• 1/4 cup freshly squeezed orange juice