Easy 3-Ingredient No-Bake Peanut Butter Cheerio Bars: The Ultimate Quick Snack & Breakfast!
Discover the simplest way to make delicious, no-bake peanut butter cereal bars that are perfect for any time of day! These incredible Peanut Butter Cheerio Bars are not only quick and easy to prepare, but they also require just three basic ingredients, making them an ideal treat for busy families. Whether you need a grab-and-go breakfast or a satisfying afternoon snack, these versatile bars are a perfect choice.

In our house, cereal isn’t just for breakfast; it’s a beloved snack that everyone enjoys. That’s why I adore these Peanut Butter Cheerio Bars – they take that familiar comfort and transform it into a portable, mess-free, and incredibly easy-to-make treat. The beauty of this recipe lies in its simplicity: minimal prep work means you can whip up a batch in no time, and with only three simple ingredients, it’s a staple you’ll find yourself returning to again and again.
These delightful peanut butter bars are a fantastic solution for a quick after-school snack for kids, providing a burst of energy without the sugar crash of many processed treats. They also serve as an excellent fast breakfast on the go, ensuring you start your day with something wholesome and delicious, even on the busiest mornings. One of the best aspects of this recipe is its adaptability. Feel free to customize it with different types of cereal, varying levels of sweetness, or alternative nut butters to create the perfect combination that your family will love. Get ready to add this effortless, no-bake recipe to your go-to list!
Ingredient Notes: What You Need to Know
To create these irresistible no-bake bars, you only need three core ingredients. Here’s a closer look at each one and how you can adapt them to your preferences or dietary needs:
Plain Cheerios Cereal
For these peanut butter cereal bars, Plain Cheerios, Honey Nut Cheerios, or the Multigrain Cheerios are the best choices due to their mild flavor and excellent binding properties. The classic texture of Cheerios holds up beautifully when mixed with the warm peanut butter and honey. I strongly advise against using any Cheerios varieties with strong added flavors, as these can clash with the natural sweetness of honey and the richness of peanut butter, creating an unbalanced taste. If Cheerios aren’t available or you prefer another brand, a generic oat-based cereal or a similar plain, O-shaped cereal will work just as well, offering a cost-effective alternative without compromising on the quality of the bars. For those with gluten sensitivities, ensure you choose a certified gluten-free oat cereal.
Honey
Honey serves as the primary binder and a key sweetener in this recipe, giving the bars their characteristic chewiness and delightful flavor. If you’re looking to make these bars suitable for a vegan diet, you can easily substitute honey with maple syrup or agave nectar. Be aware that using these alternatives will slightly alter the overall flavor profile of the bars, adding a different nuanced sweetness. However, rest assured that the bars will still hold together perfectly, providing a delicious and satisfying treat for everyone.
Peanut Butter
Creamy peanut butter is the reigning favorite in my household for these bars, delivering a smooth, rich, and consistent texture. However, the recipe is incredibly forgiving and allows for easy substitutions based on your taste or dietary requirements. A creamy almond butter or cashew butter can be seamlessly swapped in if you wish, offering a slightly different nutty flavor while maintaining the creamy consistency. For those with nut allergies, sunflower seed butter (like SunButter) is an excellent, safe alternative that still provides the necessary binding and a delicious taste. Using crunchy peanut butter is also an option if you prefer an added textural element, introducing small bits of peanut crunch into each bite.
Why You’ll LOVE These Bars
Quick & Easy Prep, Absolutely No Baking Required!
Only Three Ingredients! Simple, Accessible, & Budget-Friendly
Incredibly Versatile: Perfect for an Afternoon Snack, a Speedy Breakfast, or a Sweet Treat!

Simple Step-by-Step Instructions
Making these no-bake bars is incredibly straightforward. Follow these steps for perfect, chewy, and delicious cereal bars every time:
- First, measure out the required amount of honey and add it to a medium-sized saucepan. This ensures you have the correct proportions for optimal binding and sweetness.
- Next, add the measured creamy peanut butter to the same saucepan as the honey. This is also the ideal moment to add an optional teaspoon of olive oil. The oil isn’t strictly necessary but can greatly help prevent the mixture from sticking excessively to the pan, making cleanup easier and ensuring a smoother consistency when combining.
- Stir the honey and peanut butter together thoroughly. Heat this mixture over low heat, stirring continuously to ensure even melting and combining. Keep the heat low to prevent burning the honey or seizing the peanut butter. Continue heating until the mixture is warm, fully combined, and just barely beginning to bubble around the edges. As soon as you see these small bubbles, immediately remove the saucepan from the heat to avoid overcooking.
- Once the honey and peanut butter mixture is warm and ready, add the measured Cheerios cereal directly into the saucepan.
- Using a sturdy spatula, stir everything together until it is exceptionally well combined. The goal here is to ensure that every single Cheerio piece is thoroughly coated with the sticky peanut butter and honey mixture. This is crucial for the bars to hold together firmly once chilled.
- After everything is perfectly combined, carefully pour or scoop the cereal mix into an 8×8 or 9×9 inch baking pan that has been lightly greased (or lined with parchment paper for easier removal). Use the back of your spatula, or even your hands (lightly greased, if preferred), to press the mixture down firmly and evenly into the pan. Compressing the mixture tightly is key to ensuring that the bars are compact and stick together, preventing them from crumbling when sliced.
- Finally, cover the baking pan and place the peanut butter cereal bars in the fridge. Allow them to chill for at least one hour, or until they are completely set and firm to the touch. This chilling time is vital for the bars to solidify. Once fully set, remove from the fridge, slice into your desired bar shapes, and enjoy your perfectly firm and delicious no-bake treats!
Leftover Storage & Freezing Tips
Once your delicious cereal bars are fully set, you can store any leftovers at room temperature in an airtight container for up to 4 days. For extended freshness and to maintain their perfect texture, transfer them to the fridge in an airtight container, where they will keep well for up to 1 week. Looking for longer storage? Check out my detailed tips below for freezing cereal bars!

Pro Tips for Perfect Peanut Butter Cheerio Bars
Achieve consistently perfect no-bake bars with these expert tips:
Oil Tip: I’ve found that adding a small amount of oil, such as a plain olive oil or a neutral vegetable oil, into the peanut butter and honey mixture when you heat it up makes a significant difference. This helps the mixture from not sticking stubbornly to the saucepan and ensures that everything combines much more smoothly and easily. It also makes cleanup a breeze! Coconut oil is another great option that adds a subtle flavor.
Chill Time is Critical: It’s absolutely essential to allow your Cheerio bars to fully set in the refrigerator before you attempt to cut or eat them. If they are not completely set, they will likely fall apart, resulting in sticky, messy peanut butter all over your hands. While they will still taste incredibly delicious, the experience will be far less enjoyable. Patience is key here; a minimum of one hour, but sometimes up to two hours, ensures a firm, sliceable bar. You can even leave them overnight for ultimate firmness!
Pressing Power: When you transfer the mixture to your baking pan, don’t just gently spread it. Press down firmly and evenly with the back of a spoon or a piece of parchment paper. The harder you press, the more compact and stable your bars will be, preventing crumbling when you cut them.
Customize Your Mix-ins: While the basic recipe is fantastic on its own, feel free to get creative! Stir in a handful of mini chocolate chips, chopped dried fruit (like cranberries or raisins), a sprinkle of shredded coconut, or even some finely chopped nuts for extra flavor and texture just before pressing the mixture into the pan. These additions can elevate your bars from simple to spectacular.
Helpful Kitchen Tools for No-Bake Success
Baking Pan: I personally prefer using a glass or porcelain baking pan because the non-stick surface makes the bars incredibly easy to remove and clean up afterward. For the perfect thickness and bar size, I highly recommend using an 8×8 or 9×9 inch pan. This size ensures your bars aren’t too thin or too thick.
Silicon Spatula: A sturdy silicone spatula is truly your best friend for this recipe. It works exceptionally well for combining the sticky ingredients without making a huge mess, and it’s also incredibly easy to clean once you’re done!

Frequently Asked Questions (FAQS)
Absolutely! While Cheerios are a classic choice, you can certainly experiment with a variety of other cereals to customize these no-bake bars. Some other cereals that work exceptionally well for peanut butter bars include plain Special K, which offers a slightly lighter crunch; Reese’s Puffs for a delicious chocolate and peanut butter flavor explosion; Honey Bunches of Oats for added texture and sweetness; or even Coco Pebbles if you’re craving a rich chocolate cereal bar. Each of these will obviously yield a different flavor and texture profile, offering fun and exciting ways to mix up this versatile recipe and discover new family favorites. Consider the sweetness and crunch factor when choosing your alternative cereal.
Yes, you can absolutely freeze these homemade cereal bars to enjoy them even longer! To ensure optimal freshness and prevent freezer burn, first wrap each individual bar tightly in cling wrap, making sure it’s completely sealed. Then, wrap the cling-wrapped bars again in aluminum foil. Store these double-wrapped bars in an airtight freezer-safe container or a heavy-duty freezer bag in the freezer for up to 1 month. When you’re ready to enjoy one, simply remove it from the freezer and let it thaw at room temperature overnight, or for a few hours, until soft and ready to eat.
Yes, making these bars vegan is incredibly simple! The only ingredient you need to swap is the honey. Instead of honey, use an equal amount of maple syrup or agave nectar. Both are excellent plant-based sweeteners and binders that will ensure your bars hold together perfectly. Make sure your Cheerios brand (or chosen cereal) is also vegan-friendly, as some can contain animal-derived ingredients.
Absolutely! While the recipe often calls for creamy peanut butter for a smoother texture, using crunchy peanut butter is a fantastic way to add an extra layer of texture and a more intense peanut flavor to your bars. The small bits of peanuts will provide a delightful crunch in every bite. The binding properties remain the same, so no adjustments are needed to the other ingredients or instructions.

You May Also Enjoy These Recipes…
- Almond Poppy Seed Muffins Recipe
- Cinnamon Sugar Air Fryer Biscuit Donuts
- Nutella Rice Krispie Treats Recipe with Chocolate Chips
- Vegan Morning Glory Muffins Recipe

Thank you so much for stopping by and checking out this recipe! If you made these delightful Peanut Butter Cheerio Bars, I would absolutely love to hear your thoughts and experiences in the comments section below. Your feedback brightens my day! If you’d like to keep up with what The Erhardts are Eating (and all our exciting adventures), be sure to follow along on Facebook, Instagram, Pinterest, Twitter& Youtube.

Ultimate Easy 3-Ingredient No-Bake Peanut Butter Cheerio Bars
Caitlyn Erhardt
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Ingredients
- 3 ½ Cups Plain or Honey Nut Cheerios Cereal (or Multigrain Cheerios; avoid strongly flavored varieties)
- ½ Cup Honey (use maple syrup or agave for a vegan option)
- ½ Cup Creamy Peanut Butter (almond butter, cashew butter, or sunflower seed butter also work)
- 1 teaspoon Olive Oil Optional, helps prevent sticking
Instructions
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In a medium-sized saucepan, combine the honey and peanut butter. If desired, add the optional teaspoon of olive oil to help prevent sticking. Stir the mixture well and heat over low heat, stirring continuously. Cook until the mixture is warm, fully combined, and just begins to show small bubbles around the edges. Immediately remove from heat once bubbling starts.
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Add the Cheerios cereal to the saucepan with the warm peanut butter mixture. Stir everything together thoroughly with a sturdy spatula, ensuring that all cereal pieces are completely and evenly coated. Once combined, scoop or pour the cereal mixture into a lightly greased 8×8 or 9×9 inch baking pan. Press the mixture down very firmly and evenly into the pan to ensure the bars are compact and hold together.
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Cover the baking pan and place the peanut butter cereal bars in the refrigerator to chill for at least one hour, or until they are completely set and firm. Once fully set, remove from the fridge, slice into desired bar sizes, and enjoy your perfectly firm and delicious no-bake treats!
Notes
Leftover Storage: Store any leftover cereal bars at room temperature in an airtight container for up to 4 days to maintain their soft, chewy texture. For extended freshness, place them in an airtight container in the refrigerator, where they will keep well for up to 1 week.
Freezer Instructions: These homemade cereal bars freeze beautifully! To store, wrap each individual bar tightly in cling wrap, then again in aluminum foil to prevent freezer burn. Store the double-wrapped bars in a freezer-safe bag or container for up to 1 month. When you’re ready to enjoy them, simply let them thaw at room temperature overnight or for a few hours.
Substitutions & Variations: This recipe is incredibly versatile! You can easily make substitutions to fit your personal preferences or dietary needs.
– Nut Butter: Swap out the creamy peanut butter for creamy almond butter, cashew butter, or even a sunflower seed butter (for nut-free options). Crunchy peanut butter can also be used for added texture.
– Sweetener: For a vegan option, replace honey with an equal amount of maple syrup or agave nectar. Note that this will slightly alter the flavor profile.
– Cereal: While Plain Cheerios, Honey Nut Cheerios, or Multigrain Cheerios work best, other cereals like plain Special K, Reese’s Puffs, Honey Bunches of Oats, or Coco Pebbles can also be used. Be mindful that different cereals will impart distinct flavors and textures.
– Mix-ins: Feel free to fold in additional ingredients such as mini chocolate chips, chopped dried cranberries, raisins, or shredded coconut just before pressing the mixture into the pan for extra flavor and flair.
Chill Time: Do not skip or shorten the chill time! Allowing the bars to fully set in the refrigerator for at least one hour (or until firm) is crucial. This ensures they hold their shape perfectly when sliced and prevents them from being sticky and crumbly.
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