Haunted Chocolate Cake | Lazy Cooking

Ingredients

• ***For the cake:***
• 1/2 cup vegetable oil, plus more, to taste, for greasing the pans
• 2 cups all-purpose flour, plus more, to taste, for dusting the pans
• 1 cup unsweetened black cocoa powder
• 1 teaspoon salt
• 3/4 teaspoon baking soda
• 1/2 teaspoon baking powder
• 2 ounces semi-sweet chocolate, chopped
• 1 tablespoon instant coffee granules
• 1 1/2 cups boiling water
• 3/4 cup sour cream
• 1 teaspoon pure vanilla extract
• 3 large eggs
• 2 cups sugar
• ***For the frosting:***
• 1 1/2 cups whole milk, divided
• 1 1/2 cups sugar
• 3/4 cup unsweetened black cocoa powder
• 3 tablespoons cornstarch
• 1/4 teaspoon salt
• 2 ounces semi-sweet chocolate, finely chopped
• 2 1/2 sticks unsalted butter, room temperature