Recreate the nostalgic magic of Hostess Sno Balls with these ultra-fudgy brownies topped with fluffy marshmallow buttercream and vibrant pink coconut.
- Emulsified Frosting: Whipping marshmallow fluff with canned vanilla frosting stabilizes the sugar-fat matrix, preventing the topping from melting or sliding off the brownies.
- Engineered Density: Utilizing a box brownie mix provides a reliable, flat, and dense crumb structure that easily supports the weight of the heavy marshmallow layer.
- Fork-Tumbled Coloring: Dyeing the coconut in small increments using a fork prevents clumping and ensures even color distribution without crushing the delicate flakes.
I still remember the crinkle of the clear cellophane wrapper at the corner gas station, my sticky fingers peeling back the plastic to reveal that impossibly neon, dome-shaped marshmallow confection.
Recreating that exact childhood joy at home turned out to be surprisingly simple once I stopped overcomplicating the marshmallow layer.
By whipping store-bought vanilla frosting together with sticky marshmallow fluff, we create a stable emulsion that mimics the classic snack cake filling without weeping or collapsing. The secret lies in the sugar structure of the fluff, which prevents the fat in the canned frosting from breaking down, ensuring a cloud-like texture that clings to your offset spatula as you spread it.
It is hands down a total game-changer.
For the chocolate base, while I love making my Fudgy Cocoa Brownies from scratch, a standard box mix works beautifully here because its engineered starch gelatinization guarantees a dense, flat surface that can support our heavy toppings. I always reach for Ghirardelli Double Chocolate mix for its rich cocoa profile.
Tossing the shredded coconut with food dye requires a light touch so you don't end up with a clumped, soggy mess.
You will want to use a wide, shallow bowl and gently tumble the flakes with a metal fork, letting your wrist do the work as you slowly drizzle in the pink dye. Once the coconut is dyed a brilliant, shocking pink, it gets showered over the sticky marshmallow frosting, creating a gorgeous textural contrast that looks exactly like the retro bakery case original.
Pure, unadulterated nostalgia on a plate.
Sno Ball Brownies
Ingredients
- 1 family-size brownie mix (for 13x9 pan)
- Egg, oil and water as required by the brownie mix package
- 1 16-oz. can vanilla cake frosting
- 1 7-oz. jar marshmallow cream (such as Kraft Jet-Puffed Marshmallow Creme)
- 3 cups sweetened flaked coconut
- 4-8 drops hot pink food coloring (such as AmeriColor Soft Gel Paste)
Directions
- Line a 13x9-inch baking pan with parchment paper or heavy-duty aluminum foil, leaving an overhang on the sides for easy removal, then bake the brownie mix according to the package directions and let them cool completely in the pan.
- In a medium mixing bowl, combine the vanilla cake frosting and the entire jar of marshmallow cream, beating them together with a hand mixer or a sturdy spatula until the mixture is completely uniform and fluffy.
- Spread the marshmallow frosting evenly over the cooled brownie slab using an offset spatula, smoothing it all the way to the edges.
- Place the sweetened flaked coconut into a separate wide bowl, add 2 drops of the hot pink food coloring, and use a fork to gently tumble and toss the flakes until the color is distributed.
- Continue adding the food coloring 2 drops at a time, tossing thoroughly after each addition, until the coconut reaches a vibrant, uniform hot pink hue.
- Shower the pink coconut evenly over the marshmallow frosting layer, pressing very lightly with your palms so it adheres to the sticky surface.
- Lift the brownies out of the pan using the parchment paper overhang, place them on a cutting board, and slice into 20 squares using a sharp knife wiped clean between each cut.
Notes
Keep these essential tips in mind to ensure your retro treats turn out picture-perfect every single time:
- Salt Balance: If you want to add a pinch of salt to balance the sweetness, use 1/2 teaspoon of Diamond Crystal kosher salt (or 1/4 teaspoon of standard table salt, as the larger flakes of kosher salt are lighter and less dense).
- Science of the Fluff: Marshmallow fluff contains cream of tartar (an acid) which alters the pH and stabilizes the egg white proteins, allowing it to mix with the canned frosting without deflating or weeping over time.
- Workflow Warning: Do not attempt to frost the brownies while they are even slightly warm. The residual thermal mass of the brownies will melt the fat in the vanilla frosting, causing the marshmallow layer to liquefy and slide off.
- Storage Strategy: Store these in a single layer in an airtight container. If you must stack them, place a sheet of parchment paper between the layers, though some pink coconut may still cling to the paper.
Serving Suggestions
These sweet, retro bars are best served alongside items that balance their rich sweetness and soft texture:
- Serve alongside a cold glass of whole milk to cut through the intense sweetness of the marshmallow and chocolate.
- Pair with a scoop of tart raspberry sorbet to provide a bright, acidic contrast to the rich, sugary coconut topping.
- Display them on a vintage cake stand alongside slices of Coconut Texas Sheet Cake for a retro-themed dessert table.
- Serve with a hot cup of black coffee or espresso, which balances the sweetness of the marshmallow fluff with pleasant bitter notes.
Storage and Reheating
These brownies keep surprisingly well at room temperature for up to three days when sealed tightly in an airtight container. The marshmallow frosting will remain soft and pillowy, while the coconut keeps its pleasant chew.
If you prefer a firmer bite, store them in the refrigerator for up to a week.
After 24 hours in the fridge, the chocolate base becomes incredibly dense and fudgy, almost like fudge itself, though the coconut will lose a bit of its fluffiness. Avoid freezing the fully assembled brownies, as the marshmallow cream does not thaw well and can become unpleasantly runny and sticky.
Always serve them slightly chilled or at room temperature.
Ingredient Substitutes
If you need to swap out ingredients, these tested alternatives will keep your dessert on track:
- Sweetened flaked coconut → Unsweetened shredded coconut: Use a 1:1 ratio, but add 1 tablespoon of simple syrup to the dye mixture to help the color adhere to the drier flakes.
- Vanilla cake frosting → Homemade buttercream: Substitute 16 ounces of store-bought frosting with 2 cups of homemade vanilla buttercream, ensuring it is whipped until very light before adding the fluff. You can adapt the frosting technique from my Cookie Sandwiches with No-Fail Marshmallow Buttercream Frosting.
- Hot pink food coloring → Natural beet juice powder: Substitute 4-8 drops of gel dye with 1/2 teaspoon of beet juice powder dissolved in 1/2 teaspoon of water for a natural pink hue.
- Boxed brownie mix → Gluten-free brownie mix: Substitute 1:1, baking according to the gluten-free package instructions to accommodate dietary restrictions without losing the fudgy texture.
These nostalgic squares are bound to turn heads with their vibrant pink hue and cloud-like topping. They bring all the fun of the childhood lunchbox classic straight to your modern dessert table.
