Peanut Butter Chocolate Cereal Bars

Easy No-Bake Puppy Chow Bars: Fudgy Muddy Buddies for a Quick & Delicious Treat

Indulge in the nostalgic taste of traditional Muddy Buddies, reinvented into incredibly thick, fudgy, and utterly irresistible no-bake bars! These (For Humans Only) Puppy Chow Bars are so simple to make and guaranteed to disappear in no time.

Growing up, few treats held the same magical appeal as “Puppy Chow.” I distinctly remember flipping over the box of Crispix cereal, eager to follow the recipe for what became one of my absolute favorite, impossibly easy-to-make desserts. As time went on, Chex cereal released their own version, aptly named “Muddy Buddies.” Regardless of what you call this classic confection – whether it’s Puppy Chow, Muddy Buddies, or even Monkey Munch – the core deliciousness remains the same: a delightful blend of crispy cereal coated in a rich peanut butter and chocolate mixture, then dusted with powdered sugar.

Today, we’re taking that beloved concept and elevating it into a convenient, no-fuss bar form. My classic Puppy Chow Recipe already features an amped-up flavor profile with even more peanut butter and chocolate goodness. Now, imagine all that flavor packed into a perfectly portioned, fudgy bar that requires no baking at all. These no-bake Puppy Chow Bars are not just easier to make, but they also offer a wonderfully dense and chewy texture that’s simply divine.

Stack of fudgy Puppy Chow Bars on a white plate, dusted with powdered sugar.
Classic Puppy Chow flavors transformed into a convenient bar format.

What Exactly Are Puppy Chow Bars (or Muddy Buddies)?

Before we dive into the recipe, let’s talk about the origin of this fantastic treat. “Puppy Chow” or “Muddy Buddies” refers to a sweet snack mix made with Chex or Crispix cereal, coated in a melted mixture of chocolate and peanut butter, and then generously tossed in powdered sugar. The name “Puppy Chow” comes from its appearance, which somewhat resembles kibble (though, again, these are strictly for human consumption!). The charm of this dessert lies in its delightful contrast of textures – the crispy crunch of the cereal against the smooth, sweet coating, all finished with a soft dusting of sugar. Turning it into a bar simplifies serving and creates a more substantial, fudgy bite, moving it from a snack mix to a proper dessert bar.

Why You’ll Adore This No-Bake Recipe

  • Effortlessly Easy: With only five ingredients and no oven required, these bars are perfect for beginners or when you need a quick dessert.
  • Nostalgia in Every Bite: They capture all the beloved flavors of your childhood favorite in a new, exciting form.
  • Rich & Fudgy Texture: Unlike the loose cereal mix, these bars offer a dense, chewy, and satisfyingly fudgy consistency.
  • Quick to Prepare: From start to finish, you’re looking at about 10 minutes of active prep time.
  • Crowd-Pleaser: Ideal for parties, potlucks, lunchboxes, or a simple sweet craving at home.
  • Minimal Cleanup: One bowl, one pan, and you’re mostly done!

Simple Ingredients for Irresistible Bars

You won’t believe how few ingredients you need to create these amazingly delicious bars. Just five staples from your pantry are all it takes:

  • Creamy Peanut Butter: The star of the show, providing that signature nutty flavor and a key component for the fudgy texture.
  • Marshmallows: Just a touch, acting as a binder to hold everything together and contributing to the soft, chewy bite. We’re talking only 5 regular-sized or 50 mini marshmallows for the entire recipe – just enough to achieve that perfect fudginess without being overly gooey like traditional Rice Krispie Treats.
  • Chocolate Chips: Semi-sweet works perfectly, balancing the sweetness and adding rich chocolatey goodness.
  • Chex Cereal: The crispy base! Corn or Rice Chex are excellent choices as their mild flavor allows the peanut butter and chocolate to shine.
  • Powdered Sugar: For that classic finish and extra sweetness.

Yep, that’s really it! These humble ingredients come together to create something truly magical. The precise amounts are detailed in the recipe card below, but trust us, the ratio is spot on for a perfectly balanced treat.

Ingredients for Puppy Chow Bars laid out on a counter, including Chex cereal, chocolate chips, peanut butter, marshmallows, and powdered sugar.
Just five simple ingredients are all you need for these delightful bars.

Step-by-Step: Crafting Your Fudgy Puppy Chow Bars

Making these no-bake bars is incredibly straightforward. Follow these simple steps for a perfect batch every time:

  1. Melt the Base: In a large, microwave-safe bowl, combine your chocolate chips, marshmallows, and creamy peanut butter. Microwave this mixture at 50% power in 45-second intervals. After each interval, stir thoroughly. It typically takes 2-3 cycles to achieve a beautifully smooth, glossy, and fully melted consistency. Stirring is key to prevent scorching and ensure even melting.
  2. Coat the Cereal: Once your chocolate-peanut butter mixture is perfectly smooth, add the Chex cereal to the bowl. Gently fold and mix until every piece of cereal is thoroughly coated. Be careful not to crush the cereal too much; we want those delightful crispy bits!
  3. Press into Pan: Transfer the coated cereal mixture into an 8-inch square pan. Using a spatula or the back of a spoon (or even your hands, slightly moistened to prevent sticking), press the mixture firmly and evenly into the pan. This step is crucial for ensuring your bars hold together nicely when sliced.
  4. Dust and Set: Generously dust the top of the pressed mixture with powdered sugar. This not only adds that classic Puppy Chow aesthetic but also prevents stickiness. Now comes the hardest part: patience! Let the bars completely set up before slicing. You can leave them at room temperature or place them in the refrigerator for faster setting.
Close-up of Puppy Chow Bars in a baking pan, generously dusted with powdered sugar, ready for slicing.
The final dusting of powdered sugar adds a touch of classic charm.

Storage & Serving Suggestions

These Puppy Chow Bars are best enjoyed at room temperature for that perfect soft and fudgy texture. To store them, cover the bars tightly and keep them in an airtight container for 4-5 days at room temperature. If your home tends to be warm, or if you prefer a firmer bar, you might consider refrigerating them. Chilled bars will maintain their shape and freshness for closer to 7 days. Remember, if you refrigerate them, take them out about 15-20 minutes before serving to allow them to soften slightly and bring out their full flavor profile.

For serving, cut them into squares of your desired size. They make fantastic individual treats, perfect for packed lunches, dessert platters, or just a quick indulgence. Pair them with a cold glass of milk for the ultimate nostalgic experience!

Puppy Chow Bars cooling in a baking pan, with a generous layer of powdered sugar on top.
Store these delectable bars for days, though they likely won’t last that long!

Recipe Tips & Creative Variations

While the classic Puppy Chow Bar is a delight on its own, there are many ways to customize and enhance this recipe to suit your preferences or dietary needs:

  • Peanut Butter Alternatives: If you or someone you’re serving has a peanut allergy, don’t despair! You can easily swap peanut butter for other creamy nut butters like almond butter or cashew butter. For a nut-free option, sun butter (made from sunflower seeds) works wonderfully and provides a similar consistency and rich flavor. Biscoff spread or cookie butter also makes for a delicious and unique twist.
  • Chocolate Choices: These bars are inherently sweet. If you prefer a less intensely sweet treat, consider using dark chocolate chips instead of semi-sweet. You could also experiment with milk chocolate for an even sweeter profile, or even white chocolate for a different flavor altogether (though the “muddy” appearance might change!).
  • Cereal Variety: While Corn or Rice Chex are our top recommendations because of their neutral flavor that lets the chocolate and peanut butter truly shine, feel free to use whatever Chex cereal you have on hand or prefer. Wheat Chex can add a slightly heartier texture.
  • Add-Ins for Extra Crunch & Flavor:
    • Mini M&M’s or Chocolate Candies: Stir them into the mixture along with the cereal for bursts of color and extra chocolate.
    • Chopped Nuts: A sprinkle of chopped peanuts, pecans, or almonds can add more texture and a nutty depth.
    • Pretzels: Crushed pretzels offer a fantastic salty-sweet contrast.
    • Sprinkles: Add festive sprinkles to the top while the bars are still soft for a holiday or celebration-themed treat.
  • Spice It Up: A pinch of cinnamon or a tiny dash of chili powder (seriously, just a tiny bit!) can add an intriguing layer of warmth to the chocolate.
Close-up of Puppy Chow Bars for Pinterest, showcasing the fudgy texture and powdered sugar dusting.
These bars are perfectly portable and make a great grab-and-go snack.

Troubleshooting & FAQs

Even though these bars are super easy, sometimes questions arise. Here are a few common ones:

  • Why are my bars too crumbly? This usually means there wasn’t enough melted binder (peanut butter/chocolate/marshmallow) or the mixture wasn’t pressed firmly enough into the pan. Ensure everything is thoroughly melted and well-coated, and really press down when putting it in the pan.
  • Why are my bars too soft/gooey? If they are too soft, they might not have set long enough, or your room temperature might be too warm. Try refrigerating them for at least an hour.
  • Can I use a different cereal? While Chex is ideal for its sturdy, porous structure that holds the coating well, you could experiment with other crispy, unsweetened cereals like Crispix or even cornflakes, though the texture will be slightly different.
  • How do I cut clean slices? For the cleanest cuts, ensure the bars are fully set (chilling them can help). You can also run a sharp knife under hot water, dry it, and then slice. Reheat and wipe the knife between cuts if needed.
  • Can I freeze these bars? Yes! Wrap individual bars tightly in plastic wrap, then place them in an airtight freezer-safe bag or container for up to 2-3 months. Thaw at room temperature before serving.

Explore More Delicious Dessert Recipes

If you loved these easy no-bake bars, you’re in for a treat! We have a plethora of other fantastic dessert recipes that are equally simple and delicious. Why not try one of these next?

  • Cookie Dough Frosting
  • Cosmic Brownie Cookies
  • Ding Dong Cake
  • No Bake Monster Cookie Bars
  • Homemade Milky Way
  • Star Crunch Cookies
  • Biscoff Rice Krispie Treats
Puppy Chow Bars
4.88 from 8 votes

Puppy Chow Bars

By Erin Sellin
Puppy Chow Bars – Traditional Muddy Buddies (Puppy Chow) made into a thick and fudgy no bake bars!
Prep: 10 minutes
Total: 10 minutes
Servings: 16
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Ingredients 

  • 4 cups chex cereal, any flavor
  • 5 regular size marshmallows, 50 mini marshmallows
  • 1 1/2 cup semi-sweet chocolate chips
  • 3/4 cup creamy peanut butter
  • 1 Tablespoon powdered sugar

Instructions 

  • In a large bowl melt together the marshmallows, chocolate chips, and peanut butter. Microwave at 50% power for 45 seconds at a time, stirring in between. Stir in chex cereal once melted.
  • Press into a 8×8 inch baking dish. Press well, so they stick together as a bar. Sift powdered sugar over the top.
  • Let cool completely before serving.
  • Store in the fridge for firm bars, room temperature for softer bars.

Nutrition

Serving: 1g | Calories: 215kcal | Carbohydrates: 29g | Protein: 4g | Fat: 11g | Saturated Fat: 4g | Polyunsaturated Fat: 6g | Sodium: 117mg | Fiber: 2g | Sugar: 19g

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Author: Erin Sellin
Prep Time: 10 minutes
Total Time: 10 minutes
Course: Dessert Recipes
Cuisine: American
Servings: 16
Calories: 215
Like this recipe? Leave a comment below!


 

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