Dorie's Perfect Party Cake: Al'orange Recipe

Ingredients

• 2 1/4 cups cake flour
• 1 tablespoon baking powder
• ½ teaspoon salt
• 1 ¼ cups buttermilk
• 4 large egg whites
• 1 ½ cups sugar
• 2 teaspoons grated orange zest
• 1 stick (8 tablespoons or 4 ounces) unsalted butter, at room temperature
• ½ teaspoon pure orange extract
• 16 oz dark chocolate chips
• 16 oz. heavy whipping cream
• 1 tsp. pure orange extract