Peanut Butter Cheerio Bars
There’s something truly special about Peanut Butter Cheerio Bars that brings back sweet memories from childhood. I remember my mom making these treats on lazy afternoons when I would come home from school, the smell of melting peanut butter and marshmallow cream wafting through the house. It was always a delight to help her mix everything together, and the best part was waiting impatiently for them to cool just enough to cut into those perfectly chewy squares. These bars are not just a nostalgic treat; they are incredibly easy to make and perfect for any occasion, whether you’re hosting a gathering, packing a lunch, or simply indulging in a late-night snack. The combination of Cheerios and butter gives these bars a satisfying crunch, while the peanut butter and marshmallow create a sweet and creamy texture. You can even customize them with your favorite mix-ins, making them a versatile snack for everyone.
Recipe Snapshot
10 mins
10 mins
0 mins
Medium
180 kcal
3 g
Keto, Gluten-Free, Low FODMAP
9 g
Frying Pan, Mixing Bowl
What We Adore About This Peanut Butter Cheerio Bars
Quick to Prepare
One of the main reasons I love Peanut Butter Cheerio Bars is how quick they are to prepare. From start to finish, you can have a delicious batch ready in about ten minutes. This makes them a perfect choice for when you’re short on time but still want to whip up something homemade.
Minimal Effort
These bars require minimal effort. You don’t need complicated equipment or a long list of steps. Just a microwave and a few bowls are all you need to create these delightful snacks. It’s so easy that even kids can help out, making it a fun family activity!
Customizable Treat
Another reason to love this recipe is its versatility. You can switch up the Cheerios for any of your favorite cereals, or even add in nuts or dried fruits. Want a little chocolate? Toss in some chocolate chips for a delightful twist! The possibilities are endless!
Perfect for Any Occasion
Whether you’re preparing for a party, looking for a quick after-school snack, or just craving something sweet, Peanut Butter Cheerio Bars fit the bill. They’re also great for lunchboxes or as a quick breakfast on the go.
Great for Sharing
These bars are perfect for sharing with friends and family. Just cut them into squares, and you’ve got a lovely treat to bring to gatherings, potlucks, or any get-together. Everyone will be asking for the recipe!
Affordable Ingredients
Lastly, the ingredients for these bars are simple and inexpensive. You likely have most of them already in your pantry, making this a budget-friendly treat that doesn’t skimp on flavor.
Ingredients You’ll Need for Peanut Butter Cheerio Bars

The ingredients for Peanut Butter Cheerio Bars are straightforward and easy to find. The star players here are the peanut butter, marshmallow cream, and Cheerios. Together, they create a delightful combination of creaminess and crunch that’s simply irresistible.
- 1 cup Peanut Butter: The creamy base that adds richness and a nutty flavor to the bars.
- 6.5 oz Marshmallow Cream: This sweet component brings a fluffy texture and balances the saltiness of the peanut butter.
- 2 tablespoons Butter: A little bit of butter helps to enhance the flavor and ensures a smooth mixture.
- 5 cups Cheerios: Any flavor except fruity ones will work, providing a crunchy texture that complements the soft filling.
Peanut Butter Cheerio Bars Instructions

Making Peanut Butter Cheerio Bars is a breeze! You’ll love how simple it is to combine the ingredients and create these delicious treats. Just follow these easy steps, and you’ll be snacking in no time.
- Start by gathering all your ingredients: peanut butter, marshmallow cream, butter, and Cheerios. This will make the process smoother.
- In a medium-sized bowl, add 1 cup of peanut butter, 6.5 ounces of marshmallow cream, and 2 tablespoons of butter. Using a microwave, heat this mixture on high for about two minutes. You’ll know it’s ready when the marshmallow cream has melted and everything is warm and gooey.
- While the mixture is heating, pour 5 cups of Cheerios into a large bowl. Ensure you’re using any flavor except fruity ones for the best results.
- Next, prepare a 9×13 inch dish by spraying it with non-stick spray. This will help your bars come out easily later.
- Once your peanut butter mixture is hot and melted, carefully pour it over the Cheerios in the large bowl. Use a large spoon or spatula to mix everything together until all the Cheerios are evenly coated.
- Pour the mixture into the prepared 9×13 dish. With a spatula, spread the mix evenly and press it down firmly to ensure it holds together as it cools.
- Set the dish aside for a while and allow the bars to cool completely. This step is crucial as it helps them firm up.
- When the bars are cool, take a sharp knife and cut them into squares. I recommend cutting them into about 16 squares for perfect snack-sized pieces.
- Store the bars in an airtight container at room temperature or in the refrigerator for longer freshness. They’re great for grabbing on the go!
Things Worth Knowing
- Watch the consistency: When melting the marshmallow cream, watch carefully not to overheat it. You want it melted but not bubbling over.
- Mix quickly: The mixture can set up fast, so mix your Cheerios in quickly after pouring the melted mixture over them.
- Even pressure: When pressing the mixture into the pan, apply even pressure to help it compact and hold its shape.
- Storage time: These bars can be stored at room temperature for about a week or in the fridge for up to two weeks.
Expert Tips about Peanut Butter Cheerio Bars

Here are some expert tips to ensure your Peanut Butter Cheerio Bars turn out perfectly every time!
- Storage: To store leftovers, place them in an airtight container. They can stay fresh at room temperature for about a week.
- Freezing: You can freeze these bars by wrapping them individually in plastic wrap before placing them in a freezer-safe bag. They’ll last up to three months!
- Pairing: Consider serving these bars with a glass of milk or a cup of hot cocoa for a delightful treat. They also pair well with fruit.
- Cutting tips: Use a sharp, non-serrated knife to cut through the bars. Warming the knife slightly can help make cleaner cuts.
- Alterations: Feel free to add other cereals, nuts, or chocolate chips to the mixture for a personal twist.
Serving Options for Peanut Butter Cheerio Bars
Serving Peanut Butter Cheerio Bars can be as fun as making them. Here are some great ideas to enjoy these delicious treats:
- Breakfast treat: Enjoy them as a quick breakfast option when you’re on the go. They’re filling and nutritious!
- Lunchbox addition: Perfect for school lunches or picnics, these bars provide a sweet treat that kids love.
- After-school snack: They make for a great after-school snack that kids can help prepare!
- Party platter: Cut them into smaller squares for a party platter. They’re a hit at gatherings!
- Holiday festivities: These bars are great for holidays and can be decorated with sprinkles or drizzled chocolate for extra flair.
- Storage tips: If you want them to last longer, store them in the refrigerator. They can stay fresh for up to two weeks this way.
FAQ
Conclusion
Peanut Butter Cheerio Bars are a delightful treat that combines simplicity with deliciousness. With their creamy texture and crunchy goodness, they’re perfect for any occasion. I encourage you to try making these bars for yourself; you’ll find they’re not only a hit with friends and family but also a nostalgic bite of childhood goodness.

Peanut Butter Cheerio Bars
Equipment
- Frying Pan
- Mixing Bowl
Ingredients
- 1 cup Peanut Butter
- 6.5 oz Marshmallow Cream
- 2 tablespoons Butter
- 5 cups Cheerios
Instructions
- Start by gathering all your ingredients: peanut butter, marshmallow cream, butter, and Cheerios. This will make the process smoother.
- In a medium-sized bowl, add 1 cup of peanut butter, 6.5 ounces of marshmallow cream, and 2 tablespoons of butter. Using a microwave, heat this mixture on high for about two minutes. You'll know it's ready when the marshmallow cream has melted and everything is warm and gooey.
- While the mixture is heating, pour 5 cups of Cheerios into a large bowl. Ensure you’re using any flavor except fruity ones for the best results.
- Next, prepare a 9x13 inch dish by spraying it with non-stick spray. This will help your bars come out easily later.
- Once your peanut butter mixture is hot and melted, carefully pour it over the Cheerios in the large bowl. Use a large spoon or spatula to mix everything together until all the Cheerios are evenly coated.
- Pour the mixture into the prepared 9x13 dish. With a spatula, spread the mix evenly and press it down firmly to ensure it holds together as it cools.
- Set the dish aside for a while and allow the bars to cool completely. This step is crucial as it helps them firm up.
- When the bars are cool, take a sharp knife and cut them into squares. I recommend cutting them into about 16 squares for perfect snack-sized pieces.
- Store the bars in an airtight container at room temperature or in the refrigerator for longer freshness. They’re great for grabbing on the go!
Notes
- Use any type of Cheerios: You can use any type of Cheerios you prefer, except for the fruity ones.
- Prepare your pan: Use parchment paper or non-stick spray as these may stick.
- Mini marshmallows: If you can't find the marshmallow fluff, a small bag of mini marshmallows will work as well (melt in the microwave).
- Soften the marshmallow cream: Soften the marshmallow cream in the microwave for 10-20 seconds to make it easier to remove from the jar.
- No-bake recipe: This is a no-bake recipe, but you still have to heat things in the microwave. If you prefer, you can heat on the stovetop until the marshmallow cream is a thick liquid.
- Butter alternatives: It's fine to substitute margarine for the butter.
- Other cereals: You can substitute other kinds of cereal as well.


