Chocolate Lovelight Chiffon Cake With Champagne Filling and Chocolate Buttercream Frosting | Oregoni

Ingredients

• 2 eggs, separated
• 1 1/2 cups granulated sugar (divided)
• 1 3/4 cup sifted cake flour
• 3/4 teaspoon baking soda
• 1 teaspoon salt
• 1/3 cup vegetable oil
• 1 cup buttermilk
• 2 ounces unsweetened chocolate, melted
• 2 eggs
• 4 tablespoons cornstarch
• 1 3/4 cups half-and-half (divided)
• 1/2 cup granulated sugar
• 1 teaspoon vanilla extract
• Pinch salt
• 1 tablespoon unsalted butter
• 1/4 cup cream sherry
• 1/3 cup butter, softened
• 2 ounces unsweetened baking chocolate, melted and cooled
• 1 1/2 cups powdered sugar
• 1 1/2 teaspoons vanilla extract
• 2 tablespoons milk (or more if needed)