Marshmallow Frosting Recipe

If you’ve ever dreamed of a frosting as light and fluffy as a cloud, with the sweet, nostalgic flavor of marshmallows melting in your mouth, then this Marshmallow Frosting recipe is made for you. This homemade marshmallow frosting captures the essence of marshmallow creme but with a silky texture that’s simply irresistible. It’s perfect for dressing up cupcakes, layer cakes, or even just spooned onto cookies. The magic of this marshmallow frosting lies in its simplicity—only five basic ingredients come together in no time to deliver an absolute favorite that invites you to get creative in the kitchen.

Ingredients You’ll Need

Ingredients You’ll Need

Gathering these simple yet essential ingredients is your first step toward creating a dreamy Marshmallow Frosting. Each component plays a crucial role: the egg whites bring volume and stability, while the sugar adds the divine sweetness and glossy shine that defines this frosting.

• 5 large egg whites: Fresh, at room temperature, to whip up the perfect airy base for the frosting.
• 1/2 teaspoon cream of tartar*: This stabilizes the egg whites and helps the meringue hold strong peaks.
• Pinch of salt: Balances out the sweetness and enhances overall flavor complexity.
• 2 cups granulated sugar, divided: Provides the signature sweetness and glossy finish when cooked into a hot syrup.
• 2/3 cup water: Used to dissolve sugar and create the syrup that transforms the frosting texture.
• 2 teaspoons vanilla extract: Adds a warm, comforting aroma and rounds out the flavor beautifully.

How to Make Marshmallow Frosting

Step 1: Whip the Egg Whites

Begin by placing the egg whites, cream of tartar, and a pinch of salt in a large mixing bowl. Using a mixer on medium speed, whip these ingredients until they become foamy. This foamy foundation is crucial because it sets the stage for creating the fluffy texture that Marshmallow Frosting is known for.

Step 2: Add Sugar Slowly

While keeping the mixer running, slowly and steadily incorporate 1 cup of granulated sugar, adding about a teaspoon at a time. This patience pays off by allowing the sugar to dissolve gradually, ensuring your frosting will have that smooth, glossy finish. Continue whipping until the mixture can hold firm stiff peaks, which means the frosting will stand tall without collapsing.

Step 3: Mix in Vanilla Extract

Next, whip in the vanilla extract for a burst of fragrant flavor. Lower the mixer speed to keep the mixture stable as you prepare the sugar syrup that will take your marshmallow frosting to the next level.

Step 4: Prepare the Hot Sugar Syrup

In a small saucepan, combine the remaining 1 cup of granulated sugar with 2/3 cup water. Place over medium heat and bring the mixture to a boil, cooking it until it reaches 235°F. This precise temperature ensures the syrup will set the meringue perfectly without crystallizing.

Step 5: Combine Syrup with Meringue

With the mixer still on low, very slowly pour the hot sugar syrup into the whipped meringue in a thin, steady stream. The syrup’s heat gently cooks the egg whites, stabilizing the frosting and giving it that signature marshmallow-like chewiness.

Step 6: Whip to Stiff, Glossy Peaks

Once all the syrup is incorporated, crank the mixer up to high speed and whip until the frosting is very stiff and glossy. This final whipping adds volume and sheen, making your Marshmallow Frosting look as incredible as it tastes.

How to Serve Marshmallow Frosting

Garnishes

Marshmallow Frosting pairs beautifully with a variety of toppings. Toasted coconut flakes add a lovely crunch and tropical flair, while a sprinkle of finely chopped nuts offers a satisfying texture contrast. For a pop of color and freshness, fresh berries or edible flowers make the frosting look as stunning as it tastes.

Side Dishes

Consider serving this marshmallow frosting alongside classic desserts like rich chocolate brownies or spiced gingerbread cookies for a wonderful flavor contrast. It also shines atop warm cinnamon rolls or paired with fruit-filled pastries for breakfast treats elevated to a whole new level of indulgence.

Creative Ways to Present

Think beyond the usual piping bag! Spread this marshmallow frosting between layers of cakes for a soft, pillowy filling or dollop it on individual parfait cups layered with fresh fruit and cake crumbs. You can even use it as a dip for graham crackers, turning a simple snack into a fun, interactive dessert experience.

Make Ahead and Storage

Storing Leftovers

Leftover Marshmallow Frosting can be stored in an airtight container at room temperature for up to 24 hours. Keep it covered well to prevent it from drying out. If you notice it stiffening too much, a quick stir with a spoon or brief gentle warming can help regain its fluffy texture.

Freezing

Freezing marshmallow frosting isn’t ideal as the texture can change once thawed, often becoming grainy or watery. It’s best to make it fresh or store leftovers for short-term use. If you must freeze, do so in small portions and thaw gently in the refrigerator overnight.

Reheating

If your marshmallow frosting loses a bit of its mojo after storage, simply warm it gently over a double boiler or in a microwave at low power in short increments, stirring frequently. This will help restore its signature glossy, spreadable consistency without melting it down completely.

FAQs

Can I use pasteurized egg whites for this recipe?

Yes, pasteurized egg whites work well and are a safer alternative if you’re concerned about raw eggs. Just ensure they are at room temperature before whipping for the best volume.

What if I don’t have cream of tartar?

If cream of tartar isn’t on hand, a few drops of lemon juice or white vinegar can be excellent substitutes to stabilize the egg whites and help the meringue set properly.

Why is my marshmallow frosting grainy?

A grainy texture usually means the sugar wasn’t fully dissolved or the syrup was cooked at an inconsistent temperature. Make sure to add the sugar slowly and monitor the syrup with a candy thermometer for perfectly smooth frosting.

How long does Marshmallow Frosting stay fresh on a cake?

When applied to a cake and stored properly at room temperature, marshmallow frosting should stay fresh and fluffy for up to 24 hours. For longer storage, refrigerate the cake but be aware the texture may firm up.

Can I flavor the marshmallow frosting differently?

Absolutely! Beyond vanilla, try adding almond extract, citrus zest, or a splash of coffee or cocoa powder to give your marshmallow frosting a delightful twist that suits your dessert.

Final Thoughts

Marshmallow Frosting is one of those magical recipes that feel like a warm hug from your favorite dessert. It’s light, fluffy, sweet, and incredibly versatile—perfect for making any cake or cupcake instantly special. Once you try this homemade version, with its glossy finish and melt-in-your-mouth texture, you’ll wonder how you ever lived without it. So go ahead, gather these simple ingredients, and whip up a batch of marshmallow frosting that will soon be your go-to treat for celebrations and everyday indulgences alike!