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Easy Marshmallow Fondant

2 ratings
· Le Cordon Bleu-trained · Published: Sep 12, 2022 · Modified: Mar 12, 2023 by Tabetha Klein · This post may contain affiliate links · Be the first to review

This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases.

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This recipe is the only fondant I will use. Period. Why? Most fondant on the market generally tastes gross and it's expensive. I've only ever known a handful of people who actually eat it and enjoy it. Anyway, years ago I stumbled upon a recipe for marshmallow fondant, and after a few years of accidental tweaking, here we are. 

Colorful Moana-inspired cake with characters and ocean details.
Moana Cake

What is Fondant?

Fondant is a thick, almost playdough-like consistent style of frosting. It is primarily used to decorate cakes, but I've also seen it used on cookies. At its core, it's a thick sugary dough, that generally I don't enjoy. Not sugar-coating it. 

For cake decorating purposes, you would always dirty ice (fill the layers and a thin coat outside to keep it from going dry and trapping crumbs) a cake like normal underneath, and then lay the fondant over top. 

Paw Patrol Cake - Marshmallow Fondant
Paw Patrol Birthday Cake - Covered & Decorated in Marshmallow Fondant

Coloring Your Marshmallow Fondant

You can divide this recipe up into multiple small balls once it's done. I recommend using thick jell-style food coloring vs the droplet bottles. They will think it out too much and the fondant will be too mushy. 

If you know you want to color all the fondant one color, mix in your desired color before you add the powdered sugar. It will save you lots and lots of time and an arm workout. 

Is Fondant Hard to Work With?

Making decorations like the ones below is relatively easy. Once you get the hang of rolling it out and making sure it doesn't stick.

However, there is a LEARNING curve behind making a flat 1-dimensional piece of fondant seamlessly drape over a very 3-dimensional object. Until I get some additional videos up for you guys, I would suggest YouTube for some tips and tricks on that!

Three-tiered cake with Star Wars and patriotic American design elements.
Smooth Buttercream Frosting w/ Marshmallow Fondant Decorations

Storing your Marshmallow Fondant

Fondant doesn't like air. It will easily dry out and get hard and become unusable. I highly suggest wrapping it in plastic, then putting it in a zip lock bag, and THEN putting it in an airtight plastic container. 

If stored properly you should be able to keep this for 1-2 weeks. Making it a perfect recipe for making ahead of time so you aren't making a big mess of your kitchen all at once. 

📖 Recipe

Colorful Moana-inspired cake with characters and ocean details.

Marshmallow Fondant

Soft, easy, inexpensive, homemade marshmallow fondant is the only kind I will use to cover and decorate cakes!
2 ratings
Recipe by - Tabetha Klein
Print Recipe Pin Recipe Save Saved! Start Cooking
Prep Time 10 minutes mins
Cook Time 3 minutes mins
Cooling Time 2 hours hrs
Total Time 2 hours hrs 13 minutes mins
Course Dessert
Cuisine English
Servings 1 8" round cake
Calories 10 kcal

Equipment

  • Bowl Microwave Safe
  • Rubber Spatula
  • Plastic Wrap

Ingredients
 
 

  • 16 oz Mini Marshmallows
  • 32 oz Powdered Sugar
  • 1 teaspoon Water
  • ½ teaspoon Vanilla Extract - clear if you want bright white
  • ¼ teaspoon Almond Extract - optional
  • Food Coloring

Instructions
 

  • In a microwave safe bowl, add the mini marhsmallows and the water.
  • Microwave for 20-30 second intervals, mixing in between until the marshmallows have completely melted and are smooth.
  • Secret Tip: If you are making your fondant all 1 color, add the dye now to save you from having to kneed it in later.
  • Add the vanilla and/or almond extract and mix.
  • Messy part! Slowly add the powdered sugar. Once it becomes too thick to use your spatula, flip onto the countertop and kneed until dough is formed.
  • Use more powdered sugar if it's too sticky to handle. Add a ½ teaspoon of water if it's too thick. The end goal will be like warm, thick play-dough.
  • It can be used right away for extra decorative style work but will need to cool for 1-2 hours before using to cover a whole cake.

Notes

  • Color while melted: Add the dye to the melted marshmallows to save yourself kneading it in later.
  • Grease everything: A little shortening on your hands and counter keeps this sticky dough manageable.
  • Texture fixes: Too sticky? More powdered sugar. Too stiff? A ½ teaspoon of water. You're going for warm, thick play-dough.
  • Rest before covering a cake: Let it firm up 1-2 hours (or overnight).
  • Storage: Wrap airtight and keep at room temp up to 2 weeks. Don't refrigerate - it sweats.

Nutrition

Calories: 10kcalCarbohydrates: 0.4gProtein: 0.03gSodium: 1mgPotassium: 4mgSugar: 0.4gCalcium: 0.5mg

Nutrition information is an estimate, calculated from the listed ingredients, and provided as a courtesy.

Keyword Cake, fondant, Frosting
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About Tabetha Klein

Hi, I'm Tabi — the chef behind Tabetha's Table. I'm a Le Cordon Bleu grad (Class Valedictorian, 2007) and former Lead Chef Instructor, which is a fancy way of saying I've spent my whole career teaching people to cook. These days that happens right here: real recipes, the why behind them, and exactly where people mess them up — so you don't. When the smoker's not running, I'm feeding Jon and the kids something new. Come hang out with me on @tabethastable on Instagram and Tabetha's Table on Pinterest.

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Tabetha Klein, the chef behind Tabetha's Table

Hi, I'm Tabi. Le Cordon Bleu valedictorian, ex-restaurant cook, and the one your friends text for the recipe. More about me →

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