If you’re craving a snack that’s both nostalgic and irresistible, the Sweet Peanut Butter Cornflake Bars Recipe is a total game-changer. These bars bring together the creamy richness of peanut butter, the perfect sweetness from sugar and corn syrup, and that unbeatable crunch of cornflakes. Easy to whip up in minutes, they’re an ideal treat to satisfy your sweet tooth or to share with friends and family. Whether it’s an afternoon pick-me-up or a homemade gift, these bars never fail to bring smiles and comfort with every bite.

Ingredients You’ll Need
Gathering just a handful of simple ingredients, this recipe relies on each to deliver the perfect balance of flavor and texture. Every element plays its part, from the creamy peanut butter that forms the luscious base to the crunchy cornflakes that add a delightful bite.
- 1 cup creamy peanut butter: Use smooth peanut butter for that melt-in-your-mouth texture that binds everything together seamlessly.
- 1/2 cup light corn syrup: Acts as the binding agent while adding a subtle, glossy sweetness.
- 1/2 cup sugar: Granulated sugar delivers the essential sweetness that balances the peanut butter’s richness.
- 6 cups cornflakes: The star crunch factor that gives these bars their signature crispy texture.
How to Make Sweet Peanut Butter Cornflake Bars Recipe
Step 1: Prepare Your Ingredients
Before you start, measure out all your ingredients to keep the process smooth and stress-free. Having everything ready will make mixing quick and mess-free.
Step 2: Heat and Combine the Wet Ingredients
In a medium saucepan, gently heat the peanut butter, light corn syrup, and sugar over low heat. Stir continuously until the sugar fully dissolves and the mixture is smooth and glossy. This step is crucial to make sure your bars hold together without being grainy.
Step 3: Mix in the Cornflakes
Remove the saucepan from heat and quickly fold in the cornflakes, making sure each flake is coated generously. The key here is to be gentle but thorough so that every bite offers that perfect crunchy texture.
Step 4: Press Into a Pan
Transfer the mixture to a greased or parchment-lined 9×13 inch pan. Press it down evenly with a spatula or clean hands to create a compact, uniform layer. This helps the bars set beautifully and hold their shape when cut.
Step 5: Chill and Cut
Place the pan in the refrigerator for at least 1 hour to let the bars firm up. Once set, slice into 12 squares and get ready to enjoy one of the easiest and most delightful homemade treats you’ll ever make.
How to Serve Sweet Peanut Butter Cornflake Bars Recipe

Garnishes
Sprinkle a touch of sea salt on top of each bar before chilling to amplify the peanut butter’s flavor. For a fun twist, drizzle melted chocolate over the bars to add a decadent layer of richness.
Side Dishes
These bars are fantastic solo but pair beautifully with a cold glass of milk, a scoop of vanilla ice cream, or a cup of hot coffee for a truly comforting treat experience.
Creative Ways to Present
Cut the bars into bite-sized squares and serve them on a decorative platter for parties. You could also sandwich two bars with a dollop of marshmallow fluff or chocolate spread for an extra indulgent snack.
Make Ahead and Storage
Storing Leftovers
Store leftovers in an airtight container at room temperature for up to 3 days. This keeps the bars fresh and crunch intact without drying them out.
Freezing
You can freeze these bars for longer storage by wrapping them tightly in plastic wrap and placing them in a freezer-safe bag. They’ll keep well for up to 2 months and thaw quickly when needed.
Reheating
Reheating isn’t necessary, but if you prefer softer bars, microwave a piece for 10 to 15 seconds. Be careful not to overheat, or the bars may become too sticky.
FAQs
Can I use crunchy peanut butter instead of creamy?
Absolutely! Crunchy peanut butter will add more texture to the bars themselves, making them even nuttier and adding bursts of peanut chunks within each bite.
Is there a substitute for light corn syrup?
If you don’t have light corn syrup, you can use honey or golden syrup, but expect a slightly different flavor and stickiness. Adjust the amount to achieve a similar consistency.
Can I use other cereals besides cornflakes?
Yes! While cornflakes offer the classic crunch, cereals like Rice Krispies or crispy oat clusters can also work, giving a slightly different texture and flavor profile.
How do I make these bars gluten-free?
Make sure to use gluten-free cornflakes, as many brands contain malt flavoring derived from barley. Check labels carefully to keep your bars safe for gluten sensitivities.
What’s the best way to cut the bars evenly?
Use a sharp knife and wipe it clean between cuts. For very clean edges, slightly warm the knife by dipping it in hot water, then dry before slicing.
Final Thoughts
There’s something wonderfully comforting about the Sweet Peanut Butter Cornflake Bars Recipe that just hits the spot every single time. Simple, quick, and bursting with flavor and crunch, this recipe is truly a keeper for anyone who loves easy homemade treats. Give it a go—you’re going to be so glad you did!
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Sweet Peanut Butter Cornflake Bars Recipe
- Prep Time: 10 minutes
- Cook Time: 5 minutes
- Total Time: 15 minutes
- Yield: 12 bars
- Category: Snack
- Method: Stovetop
- Cuisine: American
Description
Sweet Peanut Butter Cornflake Bars are a quick and easy treat that combines creamy peanut butter, light corn syrup, sugar, and crunchy cornflakes to create a delightful no-bake snack perfect for any time of the day. These bars offer a satisfying blend of sweetness and crunch, making them an ideal instant treat for both kids and adults.
Ingredients
Ingredients
- 1 cup creamy peanut butter (Smooth texture recommended)
- 1/2 cup light corn syrup (For binding)
- 1/2 cup granulated sugar (For sweetness)
- 6 cups cornflakes (Main ingredient for crunch)
Instructions
- Prepare the Binding Mixture: In a medium saucepan over low heat, combine the peanut butter, light corn syrup, and granulated sugar. Stir continuously until the mixture is smooth, warm, and well combined to create a sticky, sweet binding sauce.
- Mix with Cornflakes: Remove the saucepan from heat and immediately add the cornflakes. Gently fold the cornflakes into the peanut butter mixture ensuring they are fully coated without crushing the flakes.
- Form the Bars: Transfer the coated cornflake mixture into a greased or parchment-lined 8×8 inch baking pan. Press the mixture firmly and evenly into the pan to compact the bars.
- Set the Bars: Allow the mixture to cool at room temperature or place it in the refrigerator for about 30 minutes until the bars are firm and set.
- Cut and Serve: Once set, remove from the pan and cut into 12 equal bars. Serve immediately or store in an airtight container for later enjoyment.
Notes
- For a healthier option, consider using natural peanut butter and reducing the sugar slightly.
- Ensure you use light corn syrup for the best texture and binding properties.
- You can add mix-ins such as chopped nuts or chocolate chips for variety.
- Store the bars in the refrigerator to extend their shelf life, especially in warm weather.
- Press the mixture firmly into the pan to help the bars hold together better once set.

