Brown Butter & Marshmallow Cornflake Squares


Brown Butter and Marshmallow Cornflake Squares: A Delightful Twist on a Classic Treat

Everyone loves a rice crispy square—they are iconic, a nostalgic treat that brings back memories of childhood and simple pleasures. However, with this recipe for Brown Butter and Marshmallow Cornflake Squares, we’re taking a delightful twist by using cornflakes instead. These squares are crispy and crunchy, offering a unique texture to this family-favorite treat that is sure to impress both kids and adults alike.

Why Use Cornflakes Instead of Rice Crisps?

  • Hearty Crunch: Cornflakes provide a heartier crunch compared to the light and airy texture of rice crisps.
  • Enhanced Flavor: Toasting cornflakes in butter brings out a nuttier, more robust flavor.
  • Maintained Crispiness: Cornflakes stay crispy even when combined with the marshmallow mixture.

What Makes Browned Butter So Special?

  • Rich, Nutty Flavor: Browning butter transforms its taste, adding a warm, toasty note.
  • Aromatic Delight: The process emits a nutty, caramel-like aroma that enhances the overall flavor.
  • Perfect Pairing: The browned butter’s depth complements the sweetness of marshmallows and the crunch of cornflakes.

Key Highlights of Brown Butter and Marshmallow Cornflake Squares

  • Crispy and Chewy Texture: Perfect balance between the crunch of cornflakes and the gooeyness of marshmallows.
  • No-Bake Recipe: Quick and effortless dessert that requires no baking.
  • Customizable: Easily add drizzled chocolate, chopped nuts, or dried fruit for extra indulgence.
  • Crowd-Pleaser: Ideal for parties, family gatherings, and casual desserts.
  • Meal Prep Friendly: Long shelf life, store in an airtight container for a ready-to-eat treat.

These bars are not only delicious but also incredibly easy to make. They require no baking, making them a perfect choice for a quick and effortless dessert. Whether you’re looking for a treat to bring to a potluck, a sweet snack for a family gathering, or simply something to satisfy your sweet tooth, these Brown Butter and Marshmallow Cornflake Squares are sure to hit the spot.

Additional Tips and Ideas

  • Get Creative: Customize the squares to suit your taste preferences.
  • Perfect for Sharing: Watch as both kids and adults eagerly reach for them at any gathering.
  • Convenient Storage: Ideal for unexpected guests or spontaneous sweet tooth moments.

For more no-bake dessert inspiration, check out our 5-minute frozen yogurt recipe here.

The Brown Butter and Marshmallow Cornflake Squares recipe is a wonderful example of how a few simple changes can elevate a classic treat to new heights. The use of cornflakes adds a delightful crunch, while the browned butter infuses the bars with a rich, nutty flavor that is simply irresistible. These squares are the perfect blend of crispy, chewy, and utterly delicious, making them a must-try for any dessert lover.

So next time you’re in the mood for a sweet treat, give this recipe a try. You’ll love the unique twist on a beloved classic, and your taste buds will thank you. Trust me, these Brown Butter and Marshmallow Cornflake Squares will quickly become a favorite in your household, with everyone reaching for more.


Brown Butter & Marshmallow Cornflake Squares

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6 cups (200g) cornflakes

¼ cup butter, divided

6 cups (300g) mini marshmallows

2 teaspoons vanilla extract

¾  cup chocolate chips, melted

½ cup salted roasted peanuts, chopped

Spray an 8x8- inch pan with cooking spray


1. Crush the cornflakes with your hands to break them up into smaller pieces. 

2. Place a heavy bottomed pot over medium heat. Add a tablespoon of the butter. Once the butter has melted add the cornflakes.  Toast them in the pot, stirring occasionally until they begin to turn a darker shade of golden brown. Transfer the toasted corn flakes to a bowl. 

3. In the same pot, add the remaining butter.  Melt it and cook it until it starts to froth and then turn golden brown.  Watch it carefully so it doesn’t burn.  As soon as you see the butter change colour, add the marshmallows.  Cook the marshmallows, stirring often, until they have dissolved into the butter.  Stir in the vanilla. Add the cornflakes and stir to combine. 

4. Transfer the mixture to the 8×8-inch pan.  Press the mixture into all sides and corners of the pan. 

5. Pour over the melted chocolate and spread evenly over the top. Scatter the peanuts over the top.  Set aside to cool completely (about 2 hours)

Cut into squares and serve

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Meet the Author

Andrea Buckett

Andrea Buckett is a renowned chef and food expert celebrated across Canada for her engaging and unique food content. With over twenty years in the food industry, her approachable style and practical cooking tips bring easy, flavorful recipes to the table, tackling mealtime monotony. Regularly featured on television, social media, and in print, Andrea draws on her extensive knowledge in food, recipe development, and nutrition. She is set to publish her first cookbook with Appetite Random House in spring 2025.

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