Craving a dessert that’s sweet, gooey, and totally irresistible? This recipe for heavenly hash brownies is everything you want in a treat!
Imagine rich, fudgy brownies topped with melty chocolate, gooey marshmallows, and crunchy pecans, what could be better?
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Plus, it’s a hit with the whole family. If you’re ready for a dessert that will impress everyone, grab your ingredients and let’s make it.
What Is the Recipe for Heavenly Hash Brownies
So, why do we call these brownies Heavenly Hash? Well, it’s simple, one bite, and you’ll think you’ve died and gone to dessert heaven!
But what’s with the “hash,” you ask? It’s not some secret ingredient, the term “hash” refers to a mix of delicious things, just like the marshmallows, chocolate chips, and pecans that come together in these brownies.
Trust me, once you try these, you’ll understand exactly why they’re called Heavenly Hash Brownies. Are you prepared to indulge in a slice of pure bliss? Let’s get baking and make some magic happen!
What Makes This Heavenly Hash Brownie Recipe Irresistible
- Fudgy Brownie Base: Rich, indulgent, and perfectly gooey, this brownie base melts in your mouth with every bite.
- Cost-Effective: Skip the expensive store-bought options and make these brownies at home for a fraction of the price.
- Irresistible Toppings: The combination of mini marshmallows, chocolate chips, and pecans creates a delightful texture and burst of flavor in every bite.
- Family-Friendly: This dessert is a hit with everyone, making it perfect for gatherings, same with my Banana Brownies Recipe, another crowd-pleaser that’s rich and satisfying.
The Ingredients You’ll Need

- Unsalted Butter: For me, butter is key to getting that rich, fudgy texture in brownies. I love using unsalted because it gives me full control over the seasoning.
- Granulated Sugar: This is your go-to sweetener for that classic brownie sweetness.
- Brown Sugar: I recommend brown sugar for an extra hint of warmth and moisture. It adds a bit of caramel flavor that takes these brownies up a notch.
- Eggs: They give your brownies structure. They also add richness to the flavor.
- Vanilla Extract: I love adding vanilla extract to most of my baked goods.
- Unsweetened Cocoa Powder: cocoa powder is a must when it comes to brownies. It gives them that deep, dark chocolate flavor. You can even use Dutch-processed cocoa if you want a smoother taste!
- All-Purpose Flour: I recommend sticking with all-purpose flour because it gives the brownies structure without making them too dry.
- Mini Marshmallows: This ingredient is important for this recipe which creates that gooey, chewy topping. You can easily make your own homemade mini marshmallows if you want.
- Chopped Pecan: I love using pecans because they add that nutty crunch that’s so satisfying with each bite.
- Chocolate Chips: The chocolate chips are the star of the topping, adding extra richness and melty goodness to these brownies. I am using semi-sweet chips here!
How to Make Heavenly Hash Brownies
Making a recipe for Heavenly Hash Brownies is super easy and fun! Let’s get started!
Preheat Your Oven
Before anything else, set your oven to preheat at 350°F (175°C). This helps ensure that your brownies bake evenly from the moment you pop them in the oven. You can also line your 8×8-inch baking pan with parchment paper or lightly grease it to make cleanup easier later on!
Melt the Butter
Melt the unsalted butter either in a microwave-safe bowl or over the stovetop. I recommend using a microwave for convenience, but if you’re using the stove, do it on low heat. Once melted, set it aside to cool slightly before moving on to the next step.
Mix the Sugars and Butter
In a spacious mixing bowl, blend the granulated sugar and brown sugar together. Pour in your melted butter and stir everything together until it’s nice and smooth.
Add the Eggs and Vanilla
Next, crack the eggs into the bowl and add the vanilla extract. Whisk thoroughly until the mixture becomes smooth. This step adds the richness and depth of flavor to your brownies.
Add Cocoa Powder, Flour, and Salt
Sift the unsweetened cocoa powder into the bowl (this helps prevent lumps) and add the all-purpose flour and salt. Stir everything together until it’s just combined. Don’t overmix.
Bake the Brownie Base
Now, transfer the brownie batter into the prepared pan. Pop the pan into your preheated oven and bake for about 25 minutes.
Add the Toppings & cool
Once your brownies are baked, take them out of the oven and immediately sprinkle the mini marshmallows and chopped pecans over the top. The brownies should still be hot enough to soften and puff up the marshmallows.

melt the chocolate chips with 1 tablespoon of butter in the microwave. And pour it over the brownies.

Give the brownies about 10 minutes to cool while still in the pan.
If you love the fudgy richness of this recipe, you’ll want to try my Cheesecake Brownies next. They’ve got that irresistible creamy cheesecake swirl on top, making them just as decadent and delicious.
Top Tips for Perfect Heavenly Hash Brownies
Don’t Overmix the Batter: Overmixing can make the brownies dense and less fudgy, and we want that soft, melt-in-your-mouth texture!
Adjust the Bake Time: Every oven is a bit different, so start checking your brownies at 20 minutes to see if they’re done. You want a few moist crumbs on the toothpick, not wet batter.
Substitute Milk for a Lighter Texture: If you want a lighter, fluffier brownie base, you can swap some of the butter for milk. This will still give you a delicious taste but with a slightly less rich texture.

Storing Ideas
- Room Temperature: Keep your brownies in an airtight container at room temperature for up to 3-4 days. They’ll stay soft and fresh!
- Freezing: To keep them longer, wrap individual brownies in plastic wrap and place them in a freezer-safe bag. They’ll last for up to 2-3 months. When you’re ready to enjoy, just thaw at room temperature for a few hours
Frequently Asked Questions
Can I make substitutions in the recipe for Heavenly Hash Brownies?
Absolutely! You can swap out pecans for your favorite nuts like walnuts or almonds or even leave the nuts out for a nut-free version. You can also try using milk chocolate chips instead of semi-sweet ones for a sweeter finish. The recipe is easily customizable.
Are there any ways to make this more indulgent?
Absolutely! For an extra indulgent twist, you can add a layer of caramel sauce or a sprinkle of sea salt on top of the chocolate before it sets. Another fun idea is to fold in toffee bits or a handful of chopped candy bars into the batter.
Recipe for Heavenly Hash Brownies
Ingredients
For the Brownie Base
- ½ cup 1 stick / 113g unsalted butter
- 1 cup 200g granulated sugar
- ½ cup 100g brown sugar, packed
Instructions
- Preheat your oven to 350°F (175°C). Line your 8×8-inch baking pan with parchment paper or lightly grease it to make cleanup easier later on!
- Melt the unsalted butter. I recommend using a microwave for convenience. Once melted, set it aside to cool slightly before moving on to the next step.
- In a large bowl, mix together the granulated sugar and brown sugar. Pour in your melted butter and stir everything together until it’s nice and smooth.
- Next, crack the eggs into the bowl and add the vanilla extract.
- Sift the unsweetened cocoa powder into the bowl and add the all-purpose flour and salt. Stir everything together until it’s just combined. Don’t overmix.
- At this point, pour the brownie batter into the pan you've already prepared. Pop it into your preheated oven and bake for about 25 minutes.
- After baking, take them out of the oven and immediately sprinkle the mini marshmallows and chopped pecans over the top. The brownies will stay hot enough to melt and cause the marshmallows to puff up.
- melt the chocolate chips with 1 tablespoon of butter in the microwave. And pour it over the brownies.
- Let the brownies cool in the pan for 10 minutes. Enjoy!
Notes
- To store your brownies longer, wrap individual brownies in plastic wrap and place them in a freezer-safe bag. They’ll last for up to 2-3 months.
- If you want a lighter, fluffier brownie base, you can swap some of the butter for milk.
- start checking your brownies at 20 minutes to see if they’re done.