Jennys Birthday Chocolate Swiss Roll Food

CHOCOLATE SWISS ROLL

Steps:

• Heat the oven to 220C/200C fan/gas 7. Line a 22 x 32cm swiss roll tin (if it's 20 x 30cm that's still fine) with baking parchment. Sift the flour and cocoa powder together into a bowl and set aside.
• Crack the eggs into another bowl or the bowl of a stand mixer and tip in the sugar. Use an electric whisk or the whisk attachment to beat the eggs and sugar together for 5 mins until pale and very thick. Use a spoon or spatula to gently fold in the flour mixture until completely incorporated and everything's the same colour with no streaks.
• Gently scrape the mix into the tin and spread to the corners. Bake for 9-10 mins until puffed up and springy to touch. While the cake is baking, get another piece of parchment a little larger than the tin and scatter it with sugar. When the sponge is cooked, use oven gloves to carefully invert it onto the sugar-coated paper. Lift off the tin and peel away the top layer of parchment. Score a line 2cm from one of the shorter edges, then use the parchment to roll the sponge into a spiral with the parchment running through it. Leave the rolled sponge to cool completely.
• While the cake is cooling, make the filling by whisking all the ingredients together until the cream stiffens. Unroll the sponge and spread over the filling, leaving the scored edge clear. Starting from the scored edge, use the parchment to roll the sponge up around the filling. Lift onto a board or serving platter and dust with icing sugar. Can be served straight away or chilled for up to 24 hrs. Serve in slices.

JENNY'S BIRTHDAY CHOCOLATE SWISS ROLL

Steps:

• Preheat the oven to 375 degrees F (190 degrees C). Line all sides of a 17x12x1-inch baking pan with aluminum foil. Spray with cooking spray.
• Stir 1 cup plus 2 tablespoons flour, cocoa, baking powder, and salt together in a bowl. Set aside.
• Beat eggs in a large mixing bowl using an electric mixer until very thick and lemon-colored, about 5 minutes. Gradually beat in white sugar until combined. Blend water and vanilla extract into mixture on low speed until combined.
• Gradually sift flour mixture into egg mixture, beating just until batter is smooth. Pour batter into the prepared pan, spreading to corners.
• Bake in the preheated oven until a toothpick inserted into the center comes out clean, 12 to 15 minutes.
• Cover a tray or pan with a paper towel and sprinkle it with confectioners' sugar. Loosen cake from the edges of the baking pan and carefully invert onto the sugared paper towel; cake will be bottom-side up. Carefully remove the aluminum foil from cake bottom, trimming off stiff edges if necessary.
• Roll cake from the narrow end while hot, bottom-side out, including paper towel. Cool completely on a wire rack, about 30 minutes.
• Unroll cake and remove the paper towel.
• Whip heavy cream in a large bowl using an electric mixer until stiff peaks are just about to form. Beat in confectioners' sugar and vanilla extract until peaks form, making sure not to overbeat as cream will become lumpy and butter-like.
• Spread whipped cream over cooled cake. Roll cake back up and sprinkle with 1 tablespoon confectioners' sugar.

CHOCOLATE SWISS ROLL

Steps:

• Place a rack in middle of oven; preheat to 350°F. Line bottom of a 17x12" rimmed baking sheet with parchment paper (do not grease pan or parchment). Separate yolks from 4 large eggs, room temperature, over a medium bowl to catch egg whites. Place yolks in a large bowl and set aside.
• Add 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt, ½ tsp. cream of tartar, and ½ cup (100 g) granulated sugar to egg whites and beat with an electric mixer until sugar is dissolved and egg whites are glossy and stiff peaks form, 8-10 minutes. (You can also beat on medium-high speed in the bowl of a stand mixer fitted with the whisk attachment.)
• Add remaining ½ cup (100 g) granulated sugar to reserved egg yolks and whisk to combine, about 1 minute. Add ½ cup (32 g) unsweetened cocoa powder, preferably Dutch-process, ⅓ cup vegetable oil, 1 tsp. vanilla bean paste or extract, and ⅓ cup room-temperature water and whisk until cocoa is fully dissolved. Sift ½ cup (58 g) bleached cake flour and ½ tsp. baking powder over, then whisk vigorously to combine.
• Add one fourth of meringue to cocoa mixture and mix thoroughly (you can use either a whisk or rubber spatula). Add remaining meringue in 3 batches, gently folding after each addition until only a few streaks of meringue remain (err on the side of mixing slightly less rather than more to keep the batter billowy).
• Scrape batter into prepared baking sheet and, using a small offset spatula, gently spread to edges of pan, smoothing surface. Bake cake until top springs back when lightly pressed, 18-20 minutes (cake may start to shrink from sides of pan). Let cake cool in pan, 30-40 minutes.
• Using an electric mixer on medium-high speed, beat 2 cups heavy cream, 3 Tbsp. granulated sugar, 2 Tbsp. instant vanilla pudding mix, 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt, and 1 tsp. vanilla bean paste or extract in a large bowl until medium-firm peaks form, about 4 minutes. (Or, use a stand mixer fitted with the whisk attachment, about 1 minute.)
• Run a small offset spatula along edges of pan to release cake from sides. Place a wire rack (same size as cake and rimmed baking sheet) on top of cake and flip over to invert cake onto it; remove baking sheet. Carefully peel away parchment paper (start from a long edge where it might be embedded in the cake and pull gently to ensure you don't tear cake); discard. Place a clean sheet of parchment on top of cake and flip cake over so wire rack is now on top; remove wire rack.
• Dollop filling over surface of cake. Using spatula, smooth cream evenly over cake, working all the way to the edges. Starting from a short end and using parchment as a guide, roll up cake. Transfer cake, seam side down, to a platter and chill until filling is set, at least 30 minutes and up to 4 hours.
• Using a serrated knife, trim ¼"-½" off both ends of cake to create clean edges; discard (or consider them a snack!). Using a small fine-mesh sieve, dust top of Swiss roll with powdered sugar. Slice with serrated knife to serve. Do ahead: Cake (without powdered sugar) can be assembled 2 days ahead. Tightly wrap and keep chilled. Dust with powdered sugar just before serving.