85g Good quality Dark Chocolate (80%), chopped
280g of cream flour
2 teaspoons of baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
200g salted butter, room temperature
3 large eggs, separated
160ml freshly brewed strong coffee
For the frosting;
450g heavy whipping cream
1 teaspoon instant espresso powder
450g Pandora Bell’s Crumbly Butter Fudge, broken into smaller pieces
Position rack in centre of oven and preheat to 180°C.
Butter and flour two 9-inch-diameter cake pans with 1 1/2-inch-high sides. Line bottom of each cake pan with a parchment paper round, butter and flour parchment. Place chopped chocolate in medium metal bowl. Set bowl over saucepan of barely simmering water and stir until chocolate is melted and smooth. Remove bowl from over water and set aside.
Whisk flour, baking powder, baking soda, and salt in medium bowl to blend. Using an electric mixer, beat butter and sugar in a large bowl until fluffy and pale yellow (approx 2 minutes). Add egg yolks 1 at a time, beating until well blended after each addition. Beat in lukewarm melted chocolate, then add the Guinness and coffee. Beat flour mixture into chocolate mixture in 2 additions just until incorporated.
Using clean dry beaters beat egg whites and remaining 3 tablespoons sugar in another medium bowl until stiff but not dry. Fold 1/3 of egg whites into cake batter to lighten, and then fold in remaining egg whites in 2 additions. Divide batter between prepared cake pans (about 3 cups for each); smooth tops.
Bake cakes until tester inserted into centers comes out clean, about 30 minutes. Transfer cakes to racks and cool in pans for 20 minutes. Invert cakes onto racks; remove parchment paper and cool completely.
Place Pandora Bell’s Crumbly Butter Fudge in medium heatproof bowl. Combine whipping cream and espresso powder in medium saucepan. Bring cream mixture to simmer over medium-high heat, whisking occasionally. Pour cream mixture over broken fudge; let stand 1 minute, then whisk until fudge is melted and mixture is smooth. Chill frosting until slightly thickened and spreadable, stirring occasionally, about 2 hours (or for quick chilling, place frosting in freezer until thickened and spreadable, stirring occasionally, about 30 minutes).
Using a serrated knife, trim rounded tops from both cake layers so that tops are flat. Place 1 cake layer, trimmed side up, on 9-inch-diameter tart pan bottom or cardboard round, then place on rack set over baking sheet. Drop 1 1/4 cups frosting by large spoonfuls over top of cake layer; spread frosting evenly to edges with offset spatula or butter knife. Top with second cake layer, trimmed side down. Spread remaining frosting evenly over top and sides of cake.