Chocolate Caramel Swiss Roll Food

CHOCOLATE-CARAMEL SWISS ROLL

Steps:

• Whipped cream: Fill a large bowl with ice water. In a small, heavy pot, stir together granulated sugar and 2 tablespoons water; heat over medium-high, stirring occasionally, until sugar is dissolved. Continue to cook, swirling occasionally, until deep golden brown, about 6 minutes. Meanwhile, stir cornstarch into 1/4 cup cream, then stir mixture into remaining 1 1/4 cups cream. Add cream mixture and salt to caramel, whisking constantly (it will bubble up), and bring to a boil. Set pot in bowl of ice water and let cool, whisking occasionally, 30 minutes; then refrigerate until very cold, at least 1 hour and up to overnight.
• Cake: Preheat oven to 425 degrees. Spray a 12 1/2-by-17 1/2-inch rimmed baking sheet with cooking spray. Line with parchment; spray parchment, then dust with cocoa, tapping out excess. Whisk together cocoa, flour, and salt.
• Combine eggs, yolks, and granulated sugar in a heatproof bowl set over (not in) a pot of simmering water. Whisk until sugar is dissolved and mixture is warm to the touch, about 2 minutes. In a mixer fitted with the whisk attachment, beat on medium-high speed 2 minutes. Increase speed to high and beat until mixture is pale and thick, about 4 minutes more.
• Sift cocoa mixture over top of egg mixture, then fold in. When almost incorporated, pour butter down side of bowl; gently fold to combine, scraping bottom of bowl. Transfer to prepared sheet, using an offset spatula to spread evenly. Bake until center springs back when lightly touched, 6 to 7 minutes. Run a small sharp knife around edges of cake. Invert onto a clean kitchen towel; remove parchment. Immediately, starting at one short side, roll into a log, incorporating towel. Let cool 30 minutes.
• Syrup: In a small, heavy pot, stir together granulated sugar and 2 tablespoons water; heat over medium-high, stirring occasionally, until sugar is dissolved, 1 minute. Continue to cook, without stirring but swirling occasionally, until syrup turns dark amber, 3 to 4 minutes. Whisk in 1/4 cup water (it will bubble up), bourbon, and cocoa. Whisk until smooth. Let cool about 30 minutes.
• Whisk confectioners' sugar into chilled cream mixture, then whip to stiff peaks. Refrigerate at least 30 minutes and up to 2 hours. Whisk again just before filling cake.
• Unroll cooled cake. Brush surface generously with syrup. Use offset spatula to spread whipped cream over cake, leaving a 1/2-inch border all around. Starting at a short end, roll cake to enclose filling (without towel). Wrap towel around cake (for a tight roll, hold closed with binder clips). Refrigerate at least 1 hour and up to overnight. Dust with cocoa and serve. (For cleanest slices, use a serrated knife.)

COFFEE-CARAMEL SWISS ROLL

Steps:

• Preheat oven to 350 degrees. Brush a 13-by- 18-inch rimmed baking sheet with oil. Line bottom with parchment; brush parchment with oil.
• Cake: Whisk together flour, salt, and baking powder to combine. In a large heatproof bowl, whisk hot water with 1/2 cup granulated sugar until dissolved. Whisk in oil, then egg yolks and vanilla until smooth. Whisk flour mixture into sugar mixture just until combined. In a mixer fitted with the whisk attachment, beat egg whites on medium-low speed until frothy. Add cream of tartar, increase speed to medium-high, and continue beating until soft peaks form. Gradually add remaining 1/4 cup granulated sugar; continue beating until stiff, glossy peaks form. Stir one-third of egg whites into batter. Gently fold in remaining egg whites just until no white streaks remain. Transfer to sheet; spread evenly to edges with an offset spatula.
• Bake until pale golden and pulling away from edges, and top springs back when lightly touched, 17 to 19 minutes. Let cool on a wire rack 5 minutes. Meanwhile, generously dust a kitchen towel with confectioners' sugar. Flip cake out onto towel, remove parchment, and generously dust top with more confectioners' sugar. Starting at one short end, roll up cake in towel. Let cool completely, about 1 hour.
• Syrup: Meanwhile, in a small saucepan, bring granulated sugar and 3 tablespoons water to a boil, stirring until dissolved. Remove from heat; whisk in espresso powder until dissolved (mixture will foam). Transfer to a heatproof bowl and refrigerate until cold, about 30 minutes.
• Filling: Meanwhile, prepare an ice-water bath. In a saucepan, combine granulated sugar, 1 tablespoon water, and salt. Cover; cook over medium heat, swirling a few times, until boiling and sugar has dissolved, about 5 minutes. Uncover and continue boiling, undisturbed, until mixture turns golden amber, 3 to 5 minutes more. Remove from heat. Carefully add cream in a slow, steady stream (it will bubble up and splatter). Return to medium heat; cook, stirring, until smooth. Transfer to a bowl set in ice-water bath; let stand, stirring a few times, until cold, about 30 minutes. Remove from bath; whisk to stiff peaks.
• Unroll cake. Brush any residual sugar from top, then brush evenly with espresso syrup. Dollop with filling and spread evenly with an offset spatula, leaving a 1/2-inch border. Starting at one short end, roll up cake (without towel). Wrap cake roll in towel and transfer to a baking sheet, seam-side down, to maintain cylindrical shape. Refrigerate until filling sets, at least 8 hours and up to 1 day.
• Frosting: In a saucepan, bring 2 inches of water to a simmer over medium heat. In a large heatproof bowl, combine egg whites, granulated sugar, cream of tartar, corn syrup, and water. Transfer bowl to pan (do not let bottom touch water). Beat on high speed until stiff peaks form, about 5 minutes. Remove bowl from heat; continue beating on high until mixture is no longer warm to the touch, about 5 minutes more.
• Remove cake roll from towel; transfer to a cake plate. Spread frosting evenly over top and sides. (Frosted cake can be refrigerated, uncovered, up to 3 hours before slicing and serving.) Briefly wave a kitchen torch over frosting until golden brown in places. Slice cake into rounds; serve.