If you’re a chocolate lover with a sweet tooth, this recipe for Heavenly Hash Brownies will become your new obsession. These rich, fudgy brownies are packed with gooey marshmallows, crunchy nuts, and decadent chocolate chunks—creating the perfect harmony of flavors and textures. Whether you’re baking for a party, a cozy family dessert, or just treating yourself to something indulgent, these brownies live up to their heavenly name.
What makes these brownies so special is the irresistible topping of toasted marshmallows and melted chocolate, giving each bite a gooey, crunchy finish. Paired with the soft, chewy brownie base, every square feels like a slice of dessert heaven. And the best part? They’re surprisingly easy to make with simple pantry ingredients!
In this guide, we’ll walk you through how to make the best Heavenly Hash Brownies from scratch, along with pro tips to ensure they turn out perfect every time. Get your baking tray ready—you’re about to experience brownie bliss!

Table of Contents
Origins of Heavenly Hash Brownies
Inspired by Southern dessert traditions, the Recipe for Heavenly Hash Brownies perfectly marries rich chocolatey goodness with ooey-gooey marshmallows and crunchy nuts. Inspired by the old-time “Heavenly Hash” candy, this brownie version was the old extension-services staple of American kitchens from the mid-20th century. The recipe marries the comforting decadence of fudgy brownies with the delightful textures of marshmallows and nuts, making them a lovably messy perennial at potlucks, holidays and everyday indulgence.

Keys for Perfecting the Recipe for Heavenly Hash Brownies
- Use Good Custard: Use rich cocoa powder and chocolate. And for texture, choose fresh, fluffy marshmallows and roasted nuts.
- Perfect Texture: Bake until barely set for a fudgy center. Do not overbake this to ensure the marshmallow topping melts to gooey perfection.
- Evenly Distributed: Distribute the marshmallows and nuts evenly in the batter before baking so that every mouthful has some heavenly mix.
- Cooling Time: Allow the brownies to cool completely before slicing to achieve clean, perfect edges.

Health Benefits of Heavenly Hash Brownies
Ingredient | Benefit |
---|---|
Dark Chocolate | Rich in antioxidants and can boost heart health. |
Nuts | Packed with healthy fats, protein, and fiber. |
Cocoa Powder | Contains flavonoids that promote brain health. |
While the Recipe for Heavenly Hash Brownies is undeniably indulgent, incorporating dark chocolate and nuts can provide a dose of beneficial nutrients. Moderation is key to enjoying this treat guilt-free.

Recipe for Heavenly Hash Brownies From OoohDelish!

Recipe for Heavenly Hash Brownies
Equipment
- 9×13-inch baking pan
- Mixing bowls
- Whisk and spatula
- Parchment paper
Ingredients
- For the Brownie Base:
- 1 cup 2 sticks unsalted butter, melted
- 1 cup granulated sugar
- 1 cup packed brown sugar
- 3 large eggs
- 1 teaspoon vanilla extract
- 3/4 cup unsweetened cocoa powder
- 1 cup all-purpose flour
- 1/2 teaspoon salt
- 1/2 teaspoon baking powder
- For the Topping:
- 2 cups mini marshmallows
- 1 cup chopped nuts walnuts or pecans
- 1/2 cup semi-sweet chocolate chips
Instructions
Prepare the Brownie Base:
- Grease the bottom of an 8-inch (20 c m) round cake pan with oil or butter. Grease a 9×13-inch baking pan and line with parchment paper.
- In a big bowl, combine melted butter, granulated sugar and brown sugar.
- Add eggs one at a time, beating well after each addition. Stir in vanilla extract.
- Add cocoa powder, flour, salt, and baking powder. Using a spatula, fold the dry ingredients into the wet ingredients until mixed.
Bake the Brownies:
- Pour the batter into the prepared pan and smooth the top.
- Bake for 25 minutes or until a toothpick inserted in the center is clean.
Add the Topping:
- Take the brownies out of the oven and sprinkle marshmallows, chopped nuts, and chocolate chips evenly on top of the brownies while they are hot.
- Put the pan back into the oven for another 5-7 minutes until the marshmallows are puffy and brown.
Cool and Slice:
- Let the brownies cool completely in the pan before lifting them out using the parchment paper.
- Slice into squares or rectangles for serving.
Notes

For extra indulgence, drizzle caramel or chocolate sauce over the brownies before serving.

Tips and Tricks for Heavenly Hash Brownies
- Use a Liner: If you line the baking pan with parchment paper, you can lift the brownies out and make cleaner slices.
- Chill to Cut: Refrigerate brownies for a half hour before cutting them into neat squares.
- Change Up the Toppings: Customize the recipe with white chocolate chips, shredded coconut, or dried fruit.
- Double the Batch: These brownies freeze well, so double the recipe and store your extras for later.
What to Serve with Heavenly Hash Brownies
Pair your Heavenly Hash Brownies with:
- Hot Beverages: Coffee, hot chocolate, or tea to complement the rich chocolate flavors.
- Ice Cream: A scoop of vanilla or caramel ice cream adds a creamy contrast.
- Fruit: Fresh berries or orange slices can balance the sweetness.

FAQs : Heavenly Hash Brownies
How to make Heavenly Hash Brownies?
To make Heavenly Hash Brownies, start with a rich chocolate brownie base. During the last 5 minutes of baking, top the brownies with mini marshmallows and chopped nuts. Return to the oven until the marshmallows are slightly melted and golden. Allow the brownies to cool before slicing for a gooey, delicious treat.
What is Heavenly Hash Brownies?
Heavenly Hash Brownies are a decadent dessert inspired by the classic “Heavenly Hash” candy. They feature a fudgy chocolate base topped with gooey marshmallows and crunchy nuts, combining multiple textures and flavors in every bite.
What to serve with Heavenly Hash Brownies?
Heavenly Hash Brownies pair well with hot beverages like coffee or tea, a scoop of vanilla or caramel ice cream, or fresh fruits such as berries or orange slices to balance their rich sweetness.
Share Your Twist!
We’d love to hear your version of the Heavenly Hash Brownies Recipe ! What special ingredients or techniques do you use to make it uniquely yours? Share your tips and experiences in the comments below, and let’s inspire each other to create even more delicious meals!
References
Try our recipes from OoohDelish!