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Toasted Marshmallow Buttercream Frosting

Toasted Marshmallow Buttercream Frosting is made with toasted marshmallows mixed right into the buttercream. The toasted marshmallows give this frosting recipe delicious flavor and a marshmallow-like texture! Perfect for cake filling or cupcake frosting!

Easy Marshmallow Buttercream Frosting Recipe

So this frosting. I’m just gonna say that’s it’s insanely delicious.  Not because I made it.

Well, maybe that. But because how did I not think of this sooner? And I didn’t Google it because I would like to go on believing I invented it. And Google is an inventors dream-killer.

But anyway it’s so super simple I can’t take it… it’s buttercream frosting recipe, with toasted melty marshmallows mixed right in.

Duh, right?

The marshmallows give it an insanely yummy flavor, but also a cool texture!  Like a cross between marshmallow and frosting, which obvi… it is. Of course, piped some on top of a vanilla cupcake and sprinkled Rice Krispie Cereal, because Rice Krispies are my love language.

But I could totally get down with this on a chocolate cupcake with graham cracker crumbs sprinkled on top. S’mores, FTW!

So let me show you…Toasted Marshmallow Buttercream Frosting…

Toasted Marshmallow Buttercream Frosting www.cookiesandcups.com

How to Make Toasted Marshmallow Buttercream Frosting:

Just mix up a basic buttercream.  You’re gonna go a little lighter on the sugar because the marshmallows add sweetness.

Toasted Marshmallow Buttercream Frosting www.cookiesandcups.com

Then spread marshmallows on a parchment lined baking sheet…

Toasted Marshmallow Buttercream Frosting www.cookiesandcups.com

And toast them under the broiler for just about 45 seconds, until they look like this…

Toasted Marshmallow Buttercream Frosting www.cookiesandcups.com

Immediately mix that right into the frosting.

Toasted Marshmallow Buttercream Frosting www.cookiesandcups.com

And beat the heck out of it!

Let it cool a bit before piping or spreading.  You’re gonna LOVE the texture of this frosting.

And it works perfect as a filling to a cake!

IMG_8962

As it cools it will stiffen up, so don’t go adding a bunch more powdered sugar!

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Toasted Marshmallow Buttercream Frosting

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 3.9 from 7 reviews
  • Author: Cookies & Cups
  • Prep Time: 9 min
  • Cook Time: 1 min
  • Total Time: 10 min
  • Yield: frosts 12 cupcakes 1x
  • Category: Dessert
  • Method: Oven
  • Cuisine: American

Description

Toasted Marshmallow Buttercream Frosting is made with toasted marshmallows mixed right into the buttercream. The toasted marshmallows give this frosting recipe delicious flavor and a marshmallow-like texture! Perfect for cake filling or cupcake frosting!


Ingredients

Scale
  • 1 cup butter, room temperature
  • 4 cups powdered sugar
  • 2 Tbsp milk
  • 10 oz mini marshmallows

Instructions

  1. In bowl of stand mixer beat butter until smooth. Add in powdered sugar slowly and then milk and continue mixing until smooth.
  2. Turn oven onto broil. Line a baking sheet with parchment paper and spread marshmallows out in an even layer. Place under broiler for about 45 seconds until they are browned and puffed. Watch closely because they will burn very quickly.
  3. Immediately scrape the marshmallows in to the butter mixture and beat until smooth.
  4. The frosting will be warm due to the marshmallows, so allow it to cool completely before spreading or piping.

Nutrition

  • Serving Size: 1 cupcake
  • Calories: 273
  • Sugar: 46.3 g
  • Sodium: 167.4 mg
  • Fat: 7.5 g
  • Trans Fat:
  • Carbohydrates: 52.8 g
  • Protein: 0.7 g
  • Cholesterol: 0.1 mg

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59 comments on “Toasted Marshmallow Buttercream Frosting”

  1. Cookbook Queen

    I SO need a giant bowl of this, a package of graham crackers, the Oscars and a bottle of wine. Can you tell I’ve given this some thought? 😉

  2. Perfect timing. I have been looking for the “right” frosting to put on top of oreo cupcakes (made with the new rice krispy marshmellow oreos). This will be perfect!

  3. You have me thinking. I made some peppermint marshmellows at Christmas and have some left (why?). Anyway cut them up and toast them. They are pink, too……….

  4. Dorothy @ Crazy for Crust

    You are SUCH a genius! OMG. Toasting them first…wow. And yeah, google is really good at dream killing. I stopped googling a long time ago. 🙂

  5. Erin @ The Spiffy Cookie

    Oh yum! I once made toasted marshmallow ice cream and that was great too. I gotta figure out a cupcake to frost this with!

  6. What a wild and fabulous idea!!
    As far as I’m concerned, you invented this frosting, I’m NOT going to Google it, that’s my story and I’m sticking to it. 🙂
    I will be trying this recipe for marshmallow/buttercream icing this weekend on my cupcakes, thanks Shelly!

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