Ebinger'S Blackout Cake

Ingredients

• Cake
• 3/4 cup unsweetened cocoa powder
• 1 cup milk
• 4 ounces butter, unsalted,at room temperature
• 1/4 cup vegetable shortening
• 2 cups sugar
• 3 eggs
• 2 teaspoons vanilla extract
• 2 1/4 cups cake flour
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1/2 teaspoon salt
• Pudding Filling
• 2/3 cup sugar
• 2 tablespoons cornstarch
• 1/4 teaspoon salt
• 1 1/2 cups milk
• 3 ounces unsweetened chocolate, chopped
• 1 teaspoon vanilla extract
• Frosting
• 4 ounces unsweetened chocolate, chopped
• 4 ounces butter
• 1/8 teaspoon vanilla extract
• 3 eggs
• 3 cups confectioners' sugar