GIANT CHOCOLATE BAR RECIPES

Steps:

• Line bottom and sides of loaf pan with foil, leaving an overhang on all sides. Lightly coat foil with nonstick spray.
• Gently stir sugar and 1/4 cup water in a large saucepan. Heat over medium and cook, brushing down sides of pan with a wet pastry brush if needed and swirling pan gently (do not stir), until sugar is amber-brown, 15–20 minutes. Remove from heat.
• Carefully add cream in a steady stream, stirring with a silicone spatula (it will bubble up violently); if it looks like it may boil over, stop adding cream and stir to break up bubbles. Stir in butter until melted and smooth.
• Fit saucepan with candy thermometer and heat over medium. Cook, undisturbed, until mixture reaches 245°F (almost firm-ball stage). Immediately add peanuts and salt and carefully stir to combine. Quickly transfer peanut mixture to prepared pan and press into an even layer with a spatula. Let sit at room temperature until set, at least 1 hour and up to overnight.
• Beat egg whites in a stand mixer fitted with the whisk attachment on medium speed until soft peaks form. Meanwhile, fit a small saucepan with candy thermometer. Pour 1/2 cup water into saucepan, add sugar, and gently stir to combine. Heat over medium and cook, stirring, until sugar dissolves. Bring to a boil and continue to cook, brushing down sides of pan with a wet pastry brush if needed and swirling pan gently (do not stir), until mixture reaches 255°F. Return mixer speed to medium, then add sugar mixture in a slow, steady stream to egg whites down side of bowl.
• Increase mixer speed to medium-high and continue to beat until bowl feels warm to the touch and mixture is thick, tacky, and opaque white, about 8 minutes. Add peanut butter and salt and fold gently with a spatula until incorporated.
• Scoop peanut butter mixture onto peanut caramel; gently press into an even layer. Let sit at room temperature until set, at least 1 hour and up to overnight.
• Heat chocolate in a heatproof bowl set over a saucepan of barely simmering water (bowl should not touch water), stirring, until melted. Remove from heat and, stirring constantly, add oil. Let cool, stirring occasionally, until chocolate firms slightly, about 10 minutes.
• Pour one-third of chocolate mixture over nougat; reserve remaining chocolate mixture at room temperature. Chill until set, at least 20 minutes.
• Cut a piece of parchment roughly the same size as top of loaf pan; press over set chocolate. Place a wire rack over pan. Holding pan and rack together, invert quickly. Remove pan, then peel off parchment. Set rack inside a rimmed baking sheet lined with waxed paper.
• Slowly pour reserved chocolate mixture over loaf; coat tops completely and let run down sides (use an offset spatula to coat sides completely if needed), pouring a little extra down center of bar. If you run out of chocolate mixture, carefully lift rack off pan, then remove waxed paper with chocolate drippings. Return rack to pan and pour chocolate drippings over. Chill until firm, about 45 minutes.
• Let sit at room temperature 10 minutes, then cut crosswise into 16–20 slices.
• Bar can be made 3 days ahead; loosely cover and chill.

Steps:

• Preheat oven to 350°F. Butter a 13x9" baking pan, line bottom and sides with parchment paper, and butter parchment.
• Using an electric mixer on medium speed, beat 1 cup butter in a large bowl until creamy. Add sugar and beat, scraping bowl occasionally, until incorporated. Beat in salt, then vanilla. Reduce mixer speed to low and gradually beat in flour, scraping bowl occasionally, until dough just starts to form and large pieces of flour remain.
• Press dough into prepared pan in an even layer. Poke holes all over with a fork. Bake cookie until golden brown and firm to the touch, 30–35 minutes. Transfer to a wire rack and let cool.
• Heat cream, butter, and salt in a heatproof measuring cup or bowl in a microwave until cream is warm and butter is melted, about 45 seconds.
• Gently stir sugar and 1/3 cup water in a large saucepan. Heat over medium and cook, brushing down sides of pan with a wet pastry brush if needed and swirling pan gently (do not stir), until sugar is amber-brown, 15–20 minutes. Remove from heat.
• Carefully add cream mixture in a steady stream, stirring with a silicone spatula (it will bubble up violently); if it looks like it may boil over, stop adding cream mixture and stir to break up bubbles.
• Fit saucepan with candy thermometer and heat over medium. Cook, undisturbed, until mixture reaches 245°F (almost firm-ball stage). Immediately and carefully pour over cookie. Tilt pan to spread caramel evenly. Let sit until set, at least 1 hour and up to overnight.
• Heat chocolate in a heatproof bowl set over a saucepan of barely simmering water (bowl should not touch water), stirring, until melted. Remove from heat and, stirring constantly, add oil. Let cool, stirring occasionally, until chocolate firms slightly, about 10 minutes.
• Place a sheet of parchment paper over cake pan. Place cutting board over parchment. Holding pan and board, invert quickly. Lift off pan, then peel off parchment.
• Pour one-third of chocolate mixture over cookie; reserve remaining chocolate mixture at room temperature, stirring occasionally. Spread chocolate mixture evenly with an offset spatula until cookie is coated. Chill until set, about 15 minutes.
• Using an oiled knife, cut cookie in half lengthwise. Carefully invert bars, caramel side up, and transfer to a wire rack set inside a rimmed baking sheet lined with waxed paper, spacing 2" apart.
• Slowly pour reserved chocolate mixture over bars; coat tops completely and let run down sides (use an offset spatula to coat sides completely if needed). If you run out of chocolate mixture, carefully lift rack off pan, then remove waxed paper with chocolate drippings. Return rack to pan and pour chocolate drippings over. Create a swoopy texture in chocolate with offset spatula, if desired. Chill until firm, about 45 minutes.
• Let sit at room temperature 10 minutes, then slice each bar crosswise into 10–12 pieces.
• Cookie bars can be made 3 days ahead; loosely cover and chill.