Reminiscent of a Butterfinger, these peanut butter cornflake bars are the perfect fall sweet! Crunchy, sweet, salty, and full of peanutty flavor, these cornflake cereal treats are so simple to make and use just a handful of ingredients.

Salted Peanut Butter Cornflake Bars – Ingredients

  • Cornflakes, unsweetened: Love the unsweetened cornflakes from The Real Cereal Company.
  • Honey: Swap the honey for brown rice syrup to make these vegan.
  • Peanut butter, natural and unsweetened: Both salted and unsalted peanut butter work.
  • Dark chocolate, unsweetened: Any unsweetened dark chocolate works; however, I’m partial to the Navitas Organics unsweetened cacao wafers.
  • Ground vanilla: Love the ground vanilla from Beyond Good. Vanilla paste also works; just swap it 1:1 for the ground vanilla.
  • Diamond Crystal kosher salt: I used both salted peanut butter and salted cornflake cereal. If your peanut butter is unsalted, and the cornflake cereal you use doesn’t contain salt, increase the kosher salt to 1 tsp.

Method

Prep the pan. Line an 8×8-inch square pan with parchment paper, leaving enough overhang to easily lift the bars out of the pan later. Set aside.

Crush the cornflakes. Add the cornflakes to a large Ziploc bag and seal. Using a rolling pin, crush the cereal into small pieces (see reference photo below for comparison). Pour into a large mixing bowl and set aside.

Heat the syrup mixture. In a small pot, add the honey, peanut butter, vanilla, and salt. Heat over medium-low heat, stirring vigorously to combine everything. Once the mixture is warm to the touch (it should be easily pourable), remove it from the heat.

Combine the syrup and cornflakes, press into the pan, spread over the chocolate, and freeze. Pour the peanut butter and honey mixture over the cornflakes, and using a flexible rubber spatula, mix thoroughly until combined. Pop the cornflake mixture into the prepared pan and spread it into an even layer. Then, using the back of a cup or measuring cup, firmly press the mixture into the pan to compress it. Pour the melted chocolate over the bars and spread it out in an even layer. Typically, tilt the pan around to spread the chocolate, or you could gently spread it with an offset spatula. Cover with plastic wrap and freeze for 1 hour to set.

Cut and store. Cut into 16 bars and store them in a glass container in the fridge for up to 1 week.

Notes & Storage

  • Use an 8×8 inch square pan for crisp-edged, perfectly square, cornflake bars.
  • I tested this recipe with the cereal as-is and crushed; crushing the cereal yields much crunchier, chewier bars that are closest to the texture of a Butterfinger.
  • Firmly pack the cornflake treats down with a measuring cup or glass. It’ll compress the treats and make them more dense and chewy!
  • Freeze the cornflake treats before cutting them – it’s so much easier to cut these when they’re frozen, as opposed to sticky and gooey at room temperature.
  • Store any leftovers in the fridge or freezer – they’ll get too soft on the counter. I like to put a sheet of parchment between each layer so the bars don’t stick to each other.

So excited for you to make these – they’re my new favorite sweet treat! Please leave a starred rating and review; I love hearing your feedback.

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Salted Peanut Butter Cornflake Bars

5 Stars 4 Stars 3 Stars 2 Stars 1 Star No reviews
  • Author: Yasmeen Ali
  • Prep Time: 10 minutes
  • Chill Time: 1 hour
  • Total Time: 1 hour 10 minutes
  • Yield: 16 bars 1x
  • Category: Dessert

Description

Reminiscent of a Butterfinger, these peanut butter cornflake bars are the perfect fall sweet! Crunchy, sweet, salty, and full of peanutty flavor, these cornflake treats are so simple to make and use just a handful of ingredients.


Ingredients

Scale
  • 200 g (7.2 oz) cornflakes, unsweetened
  • 175 g (6.2 oz) honey (sub with brown rice syrup)
  • 145 g (5.1 oz) natural, unsweetened peanut butter
  • 1/2 tsp ground vanilla
  • 1/2 tsp Diamond Crystal kosher salt
  • 80 g (2.8 oz) unsweetened dark chocolate

Instructions

  1. Prep the pan. Line an 8×8-inch square pan with parchment paper, leaving enough overhang to easily lift the bars out of the pan later. Set aside.
  2. Crush the cornflakes. Add the cornflakes to a large Ziploc bag and seal. Using a rolling pin, crush the cereal into small pieces (see reference photo in the method section of this post for comparison). Pour into a large mixing bowl and set aside.
  3. Heat the syrup mixture. In a small pot, add the honey, peanut butter, vanilla, and salt. Heat over medium-low heat, stirring vigorously to combine everything. Once the mixture is warm to the touch (it should be easily pourable), remove from the heat.
  4. Combine the syrup and cornflakes, press into the pan, spread over the chocolate, and freeze. Pour the peanut butter and honey mixture over the cornflakes, and using a flexible rubber spatula, mix thoroughly until combined. Pop the cornflake mixture into the prepared pan and spread it into an even layer. Then, using the back of a cup or measuring cup, firmly press the mixture into the pan to compress it. Pour the melted chocolate over the bars and spread it out in an even layer. Typically, tilt the pan around to spread the chocolate, or you could gently spread it with an offset spatula. Cover with plastic wrap and freeze for 1 hour to set.
  5. Cut and store. Cut into 16 bars and store in a glass container in the fridge for up to 1 week.