Chocolate Raspberry Truffle Cake Ingredients: For the Cake: 2 cups all-purpose flour 3/4 cup unsweetened cocoa powder 1 1/2 teaspoons baking soda 1 teaspoon salt 2 cups granulated sugar 3/4 cup unsalted butter, softened 2 large eggs 1 teaspoon vanilla extract 1 1/2 cups buttermilk 1/2 cup strong black coffee For the Raspberry Filling: 1 cup fresh raspberries 1/4 cup granulated sugar 1 tablespoon cornstarch 2 tablespoons raspberry liqueur optional For the Chocolate Ganache: 1 cup heavy cream 8 ounces bittersweet chocolate, chopped 1/4 cup unsalted butter For the Topping: Fresh raspberries Chocolate shavings