"2 cups all-purpose flour, sifted"
"1 1/4 teaspoons baking soda"
"1/2 cup unsalted butter or margarine, softened"
"1 1/4 cups granulated sugar"
"2 large eggs"
"120g bittersweet chocolate, melted and cooled"
"1 teaspoon vanilla extract"
"1 cup plain yogurt at room temperature"
"1/3 cup hot water"
"
"Chocolate Topping"
"5 tablespoons unsalted butter or margarine, softened"
"120g bittersweet chocolate, melted and cooled"
"3 cups confectioners' sugar"
"1/4 cup plain yogurt"
"1 large egg white"
"1 teaspoon vanilla extract"
"2 cups all-purpose flour, sifted"
"1 1/4 teaspoons baking soda"
"1/2 cup unsalted butter or margarine, softened"
"1 1/4 cups granulated sugar"
"2 large eggs"
"120g bittersweet chocolate, melted and cooled"
"1 teaspoon vanilla extract"
"1 cup plain yogurt at room temperature"
"1/3 cup hot water"
"
"Chocolate Topping"
"5 tablespoons unsalted butter or margarine, softened"
"120g bittersweet chocolate, melted and cooled"
"3 cups confectioners' sugar"
"1/4 cup plain yogurt"
"1 large egg white"
"1 teaspoon vanilla extract"
"Preheat the oven to a moderate temperature (170°C)."
"Grease two round cake pans with a diameter of 22.5 cm and set aside."
"Sift together the flour and baking soda."
"In a large bowl, beat the butter or margarine until creamy."
"Add the granulated sugar and beat until light and fluffy."
"Add the eggs one at a time, beating well after each addition."
"Add the melted chocolate and vanilla extract
Beat until smooth."
"Alternate adding the flour mixture and yogurt, beginning and ending with the flour mixture."
"Add the hot water, stirring continuously."
"Pour the batter into the prepared pans and bake for 25 to 30 minutes."
"Let cool and fill with filling"
"Cover with chocolate topping."
