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Home » Recipe Type » Desserts » Brownies & Bars
5 from 1 review

Fudgy Rocky Road Brownies

30 minutes
By: Pamela Reed
Posted:10/28/19
Updated:7/23/26
Jump to Recipe

My Rocky Road Brownies are rich, fudgy brownies swirled with marshmallow fluff and chopped walnuts for an easy dessert everyone loves.

A stack of chocolate brownies with visible chunks of walnuts rests on a white plate, with crumbs scattered around.

Classic Rocky Road Brownies Everyone Loves

If you’re a chocolate lover, these brownies are about to become one of your favorite desserts. They’re rich, fudgy, packed with crunchy walnuts, and finished with swirls of gooey marshmallow fluff that make every bite taste like a classic rocky road candy bar.

Brownies are one of my favorite desserts to bake, so I’ve shared quite a few brownie recipes over the years. If you’re looking for something a little more colorful, my Confetti Cake Batter Brownies are another family favorite! But when I’m craving lots of chocolate, these Rocky Road Brownies are always the ones I come back to. They’re easy to make, feed a crowd, and somehow disappear every single time.

A close-up of marble-patterned brownies cut into even squares, showing swirls of chocolate and cream or marshmallow on the surface.

Recipe Tips + Helpful Notes

  • Egg whites — Beat the egg whites before mixing them into the batter for the best texture.
  • Marshmallow fluff — Don’t worry about making perfect swirls. The messier they look, the prettier the brownies bake up.
  • Walnuts — I love the crunch walnuts add, but pecans work great too if that’s what you have.
  • The batter — It will look like there isn’t enough batter for the pan. Trust your girl—it spreads while baking and comes out perfectly.
  • Cooling — Let the brownies cool before cutting so you get clean slices and the marshmallow has time to set.

Let’s Make My Rocky Road Brownies!

Mix the ingredients in a bowl and then spread in a baking dish.

A white mixing bowl filled with chocolate batter, with a pink spatula resting inside. The bowl is placed on a white surface near a white cloth.

Grab your marshmallow fluff! Did anyone else love this as a kid on a peanut butter sandwich? Yum!

A spoonful of Kraft Jet-Puffed Marshmallow Creme is held above an open jar with a colorful blue, green, red, and yellow label.

Add the marshmallow on top.

A chocolate dessert in a white baking dish with five dollops of melted marshmallow or whipped topping arranged in a line down the center.

And using a spoon or spatula, give it a little swirly design.

A hand uses a metal knife to create swirls in chocolate and marshmallow mixture in a white baking dish.

Bake until toothpick comes out clean.

A white baking dish filled with chocolate brownies topped with a marbled swirl, cut into squares and ready to serve.

Serve and eat them all!

Close-up of chocolate brownies with a marbled, swirled pattern of chocolate and white cream on top, cut into square pieces and arranged on a white surface.

Storing Leftovers

Store brownies in an airtight container at room temperature for up to 4 days. For longer storage, freeze them in a freezer-safe container for up to 3 months. Let them thaw at room temperature before serving.

Pin for later:

Stacked rocky road brownies with visible nuts in the top half, and a close-up of sliced, swirled brownies in the bottom half. Text in the center reads “Rocky Road Brownies” with brooklynfarmgirl.com at the bottom.
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A close-up of a stack of chocolate brownies with visible nuts and chocolate chips inside, showing a moist and crumbly texture.
5 from 1 review

Fudgy Rocky Road Brownies

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My Rocky Road Brownies are rich, fudgy brownies swirled with marshmallow fluff and chopped walnuts for an easy dessert everyone loves.
By: Pamela Reed
Prep Time: 10 minutes minutes
Cook Time: 20 minutes minutes
Total Time 30 minutes minutes
serves 12

Ingredients

  • 4 egg whites beaten
  • 1/2 cup sugar
  • 1 tablespoon vanilla
  • 1/2 cup unsweetened cocoa powder
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1/2 cup flour
  • ½ cup chopped walnuts
  • 1 cup marshmallow fluff

Instructions

  • Preheat oven to 325 degrees F.
  • In a medium sized bowl, add egg whites, sugar, vanilla, cocoa powder, baking powder, salt and flour. Stir so batter is completely combined. Add walnuts and stir with a spoon.
  • Spray a 9×13 inch baking dish with cooking spray. Spread batter into the dish. The batter will look like there’s not enough, but trust me, it’ll work.
  • Add marshmallow fluff on top of the batter and using a spatula, swirl around.
  • Bake for 20-22 minutes, or until toothpick comes out clean.
  • Allow to cool for 30 minutes before cutting and removing from dish.

Nutrition Information:

Calories: 151kcal (8%)
Course: Dessert
Cuisine: American
Keyword: chocolate marshmallow brownies, fudgy rocky road brownies, marshmallow fluff brownies, Rocky Road Brownies, walnut brownie recipe
Did you make this?I love seeing what you’ve made! Tag me on Instagram at @BrooklynFarmGirl and don’t forget to leave a comment & rating below.

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  1. Susie says

    January 17, 2020 at 9:28 pm

    Made these for my Church dinner dessert and they were gone within minutes! Wish I would have saved one for myself. Thank you for the recipe.

    Reply

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Hi! I'm Pamela, an artist Mom who shares family recipes. My farm is a 1,000 sq ft apartment in NYC. Let's make dinner together.

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