Brownie mix, marshmallow cream, peanut butter, chocolate chips, and Rice Krispies come together to make the Ultimate Chocolate Bomb Brownies.
Let me be real with you: these brownies were not part of some grand master plan. They were born out of pure chaos. I was supposed to bring a dessert to a friend’s game night, and of course, I forgot until an hour before I had to leave. Sound familiar? I opened my pantry, spotted a lonely box of brownie mix, a jar of marshmallow cream that was probably meant for hot cocoa months ago, and a half-used jar of peanut butter.
Remember it later!
Planning to try this recipe soon? Pin it for a quick find later!
Remember it later!
Planning to try this recipe soon? Pin it for a quick find later!
And then it hit me. What if I just… stacked them? A brownie base, gooey marshmallow cream in the middle, and then a peanut buttery, chocolatey, crunchy topping. Was it a little unhinged? Definitely. But sometimes those “I don’t know what I’m doing but let’s try it anyway” moments create magic.
That night, the Ultimate Chocolate Bomb Brownies were gone before the first round of cards was over. My friend’s husband actually hid a few in the fridge “for later,” which I only found out when she texted me laughing about it the next day. So yeah, these aren’t just brownies. They’re conversation starters. They’re “remember that night” brownies.
Here’s a quick peek at what’s inside:
Table of content
Why You’ll Love This Ultimate Chocolate Bomb Brownies Recipe?
These brownies aren’t shy. They’re not trying to be light or elegant. They’re messy, rich, gooey, crunchy, and just a little over the top—in the best way. And honestly? Sometimes that’s exactly what you need.
Think about it: a fudgy brownie bottom (from a box, because we’re not making life harder than it needs to be), a sticky-sweet marshmallow cream layer that practically stretches when you pull it apart, and then the final blow—a topping of melted chocolate, peanut butter, and Rice Krispies. It’s like a brownie, a candy bar, and a Rice Krispie treat all got together at a party. And trust me, that party was worth attending.
Ingredient Notes:
Here’s the cast of characters that make these Ultimate Chocolate Bomb Brownies a hit:
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Brownie mix – Your favorite boxed mix works. I lean fudgy because it balances the crunch.
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Eggs, oil, water – You know the drill. They bring the brownie mix to life.
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Marshmallow cream – Sticky, sweet, and the glue of this recipe. Don’t worry if it’s messy—it’s supposed to be.
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Peanut butter – Creamy is smooth and spreadable, chunky adds a bit of surprise crunch.
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Chocolate chips – Semi-sweet is my go-to, but hey, if milk chocolate’s what you’ve got, roll with it.
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Rice Krispies (or Cocoa Krispies) – The crunch factor. Cocoa Krispies make it double-chocolatey. Triple if you count the brownie. Overkill? Maybe, but I’m not apologizing.
How To Make Ultimate Chocolate Bomb Brownies?
Step 1: Bake your brownies.
Spray your 9×13 pan, mix the brownies as the box tells you, and bake. Then—and this is important—let them cool completely. I know, patience is hard. I’ve rushed it before, and the marshmallow cream melted into a gooey puddle. Still tasty, just… less photogenic.
Step 2: Spread on the marshmallow cream.
Once cool, grab that jar and cover the brownies. It’ll stick to everything—spoon, spatula, your fingers—but don’t panic. Messy means delicious.
Step 3: Make the topping.
Microwave the chocolate chips and peanut butter in short bursts until smooth. Stir it like your life depends on it. Try not to “sample” too much at this stage (good luck with that).
Step 4: Stir in the crunch.
Mix in the Rice Krispies until every piece is coated in chocolatey peanut butter bliss.
Step 5: Spread it on top.
Pour this glorious mess over the marshmallow layer and spread it evenly. A spatula or the back of a spoon helps.
Step 6: Chill.
Cover and let it set in the fridge for at least two hours. Yes, waiting stinks. But when you finally cut into them? Totally worth it.
Want To Save This Recipe?
Storage Options:
These brownies keep really well in the fridge for about 5 days, as long as they’re covered. They taste best cold—the topping stays crunchy, the marshmallow stays gooey. You can freeze them for up to 2 months, just cut them into squares first and separate them with parchment paper. Otherwise, you’ll end up with one giant brownie brick. (Which… honestly doesn’t sound terrible.)
Variations and Substitutions:
Want to put your own spin on these Ultimate Chocolate Bomb Brownies? Go for it:
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Nut-free – Swap the peanut butter with cookie butter or sunflower seed butter.
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Different cereal – Cornflakes, Cheerios, even pretzels for that salty-sweet thing.
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Flavor boost – Add espresso powder to the brownie mix for a mocha vibe.
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Seasonal twist – Top with crushed candy canes for Christmas, pastel candies for spring, or sprinkles just because.
What to Serve with Ultimate Chocolate Bomb Brownies?
These brownies can absolutely stand alone, but if you’re feeling extra:
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Vanilla ice cream – Melts into the layers like a dream.
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A tall glass of milk – Because nothing beats the classic combo.
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Fresh berries – A little tartness to cut through the richness.
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Coffee or espresso – Perfect partner for all that chocolate.
Frequently Asked Questions:
Do I have to use a box mix?
Nope! If you’re a from-scratch brownie person, use your favorite recipe. Just keep the pan size the same.
Can I skip the marshmallow layer?
Sure, but why would you? It’s the gooey glue that makes these feel indulgent.
Can I make them ahead?
Yes! In fact, they’re even better the next day after the flavors have time to meld.
So there you have it—Ultimate Chocolate Bomb Brownies. They’re a little messy, a lot indulgent, and totally worth every bite. Not your everyday brownie, but that’s the point, right? Give them a try, and then tell me: did you manage to cut them into neat squares… or did you grab a fork and just go for it straight from the pan?
Remember it later!
Planning to try this recipe soon? Pin it for a quick find later!
Remember it later!
Planning to try this recipe soon? Pin it for a quick find later!
Keep the Flavor Coming – Try These:
Ultimate Chocolate Bomb Brownies
Ingredients
For the Brownie Base:
- 1 box brownie mix
- 2 large eggs
- ¼ cup vegetable oil
- ¼ cup water
For the Middle Layer:
- 1 jar marshmallow cream Jet-Puff or similar
For the Top Layer:
- 1 cup creamy or chunky peanut butter
- 2 cups semi-sweet chocolate chips
- 3 cups Rice Krispies cereal Cocoa Krispies preferred for extra chocolate flavor
Instructions
Prepare the pan and brownies
- Preheat the oven according to the brownie mix directions. Spray a 9x13-inch baking pan with non-stick cooking spray. Prepare the brownie batter as instructed on the package using the eggs, oil, and water. Pour the batter into the prepared pan and bake as directed.
Cool the brownies
- Remove the baked brownies from the oven and allow them to cool completely in the pan before proceeding. Cooling ensures the marshmallow layer does not melt.
Add the marshmallow layer
- Once the brownies are fully cooled, spread the marshmallow cream evenly across the surface. Use a spatula for smooth, even coverage.
Prepare the chocolate-peanut butter mixture
- In a microwave-safe bowl, combine the peanut butter and chocolate chips. Heat in 30-second intervals, stirring after each, until the mixture is melted and smooth.
Incorporate the Rice Krispies
- Stir the Rice Krispies cereal into the melted chocolate-peanut butter mixture until evenly coated.
Top the brownies
- Spread the cereal mixture carefully over the marshmallow cream layer. Use gentle pressure to ensure the topping is evenly distributed without disturbing the marshmallow layer beneath.
Chill and serve
- Cover the pan and refrigerate for at least 2 hours to allow the layers to set. Once firm, cut into 24–36 squares, depending on desired size, and serve chilled.
Notes
I’m Bitty, owner of nodashofgluten.com, where I share simple, delicious recipes for all tastes, including gluten-free. Check out my “About Me” page for more info!
