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Easy Marshmallow Fondant Recipe: 8 Cups Sugar

By Jordan Bell on April 4, 2026

A hand stretching a piece of fluffy white marshmallow fondant dough, dusted with powdered sugar.

Okay, let’s talk fondant! If you’ve ever looked at those stunning, perfectly smooth cakes and thought, “No way can I do that,” I’m here to tell you, YES YOU CAN! Seriously, this easy marshmallow fondant recipe is a total game-changer. It’s so forgiving and pliable, even if you’re totally new to cake decorating. I remember my first attempt at covering a cake with store-bought fondant – it was a disaster, honestly. Tearing, cracking, you name it! But this homemade marshmallow fondant? It stretches like a dream and tastes so much better. It’s my go-to for everything from simple birthday cakes to more elaborate wedding cake tiers. Trust me, once you try this marshmallow fondant recipe, you’ll never go back!

Why You’ll Love This Marshmallow Fondant Recipe

  • It’s seriously EASY to whip up, even for beginners!
  • It tastes way better than store-bought stuff – like a sweet, vanilla cloud.
  • Super smooth and pliable, it stretches like a dream without tearing.
  • So affordable, you can cover multiple cakes without breaking the bank.
  • Perfect for covering cakes, making cute decorations, or even modeling figures!

Ingredients for Your Easy Marshmallow Fondant Recipe

  • 16 oz mini marshmallows
  • 2 to 4 tablespoons water
  • 8 cups powdered sugar
  • 1/3 cup vegetable shortening

Step-by-Step Guide to Making Marshmallow Fondant

Step 1: First things first, grab a big microwave-safe bowl. Toss in your mini marshmallows and about 2 tablespoons of water. Pop it in the microwave for 30 seconds and give it a good stir. You’ll want to keep zapping it in 30-second bursts, stirring each time, until it’s all melted and super smooth. No lumps allowed!

Step 2: Now, add about 5 cups of your powdered sugar to that gooey marshmallow mix. Stir it all together gently. You’ll notice it starts to get really sticky and a doughy texture will begin to form.

Step 3: Time to get your hands dirty! Coat your hands really well with vegetable shortening, and then do the same to a clean countertop or a large cutting board. This is key to preventing a sticky mess. Carefully dump the marshmallow mixture onto your prepared surface. It’s time to start kneading it like regular dough!

A hand stretching a large ball of white marshmallow fondant recipe dough, dusted with powdered sugar.

Step 4: Keep that shortening handy! As you knead, gradually add the rest of the powdered sugar. You might need to reapply shortening to your hands and the surface a few times. Just keep working it, folding and pushing, until your fondant transforms from sticky goo to this amazing, smooth, elastic dough that feels awesome in your hands and doesn’t stick anymore. It’s like magic!

A hand pulling a stretchy piece from a large ball of white marshmallow fondant recipe dough on a plate.

Step 5: If your fondant feels a little too dry and starts to crack when you’re kneading, don’t panic! Just grab a tiny bit more water – like, a tablespoon at a time – and knead it in until it becomes nice and flexible again. You want it super smooth and workable.

Step 6: Once it’s perfectly smooth and pliable, shape it into a nice round ball. I like to give it a light coating of shortening all over before I wrap it up. This keeps it from drying out, whether you’re using it right away or storing it for later from this easy marshmallow fondant recipe. For more delicious no-bake treats, check out these no-bake chocolate coconut energy bars!

Tips for Perfect Marshmallow Fondant

Okay, a few little tricks I’ve picked up for super smooth marshmallow fondant! First off, to get vibrant colors, you really need to use gel food coloring. Liquid stuff can make your fondant too wet and sticky. Just add a tiny bit at a time and knead it in! Also, if your fondant ever feels like it’s cracking or getting dry while you’re working with it, rub a little more shortening on your hands and the surface. It’s like a magic eraser for fondant problems!

Serving Suggestions for Your Marshmallow Fondant Creations

Classic Victoria Sponge: This light and airy vanilla cake is the perfect canvas for your marshmallow fondant. It’s a timeless choice that always impresses, like this recipe for a Classic Victoria Sponge.
Zesty Carrot Cake: The warm spices of carrot cake pair beautifully with the sweetness of fondant. You can use your fondant to create adorable little carrot toppers too! Try this Easy Carrot Cake recipe.
Rich Chocolate Cake: For the chocolate lovers, a decadent chocolate cake covered in a smooth fondant is pure bliss. It’s a classic combo that never disappoints!
Lemon Drizzle Loaf: The bright, tangy flavor of lemon drizzle cuts through the sweetness of fondant wonderfully, creating a balanced and delightful treat.

Storing and Reheating Your Marshmallow Fondant

Okay, so once your amazing marshmallow fondant is made and you’re not using it all right away, storing it is super simple! For short-term use, just wrap it up tightly in plastic wrap, making sure there are no air pockets, and then pop it into an airtight bag or container. If you need to keep it longer, the fridge is your friend! Just make sure it’s sealed really well. The really important bit is letting it come back to room temperature for a good hour or so before you try to roll it out again. This makes it nice and pliable again, perfect for your next cake masterpiece!

Frequently Asked Questions About This Marshmallow Fondant Recipe

I get asked about this marshmallow fondant recipe all the time, so let’s clear up a few things!

Can I color marshmallow fondant?

Oh, absolutely! This is one of the best things about homemade marshmallow fondant. You can color it any shade you like by using gel food coloring. Just add a little bit at a time while you’re kneading it until you get the perfect hue. Liquid food coloring isn’t ideal because it can make the fondant too sticky.

How do I prevent it from tearing or cracking?

The trick here is usually ensuring your fondant is the right consistency and temperature. If it feels dry or starts to tear, it usually means it needs a little more pliability. Knead in a tiny bit more shortening or a *very* small amount of water. Also, make sure it’s at room temperature! Cold fondant is much more prone to cracking. For a delicious chocolate cake that pairs perfectly, check out this Mary Berry Chocolate Cake recipe!

What’s the difference between marshmallow fondant and buttercream?

They’re totally different! Buttercream is a frosting made with butter and sugar, typically used to frost cakes or as filling. It has a softer, creamier texture. Marshmallow fondant, on the other hand, is like a sugar paste. It’s stretchy and smooth, perfect for getting that flawless, clean finish on a cake. It’s also less sweet than buttercream, which many people prefer for a whole cake!

Before You Go

I really hope you give this simple marshmallow fondant recipe a whirl! Once you make it, you’ll be decorating cakes like a pro. Snap a pic of your gorgeous creations and share it with me on Pinterest, I’d absolutely LOVE to see them. Happy baking, everyone!

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A hand stretching a piece of white, fluffy marshmallow fondant recipe dough, dusted with powdered sugar.

Easy Marshmallow Fondant


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  • Author: Jordan Bell
  • Total Time: 20 minutes
  • Yield: About 3 pounds fondant 1x
  • Diet: Vegetarian

Description

A soft, pliable fondant made with marshmallows, perfect for covering cakes and creating decorations.


Ingredients

Scale
  • 16 oz mini marshmallows
  • 2 to 4 tablespoons water
  • 8 cups powdered sugar
  • 1/3 cup vegetable shortening

Instructions

  1. Place marshmallows and 2 tablespoons of water in a large microwave-safe bowl. Heat for 30 seconds, then stir. Continue heating in 30-second intervals, stirring each time, until the mixture is fully melted and smooth.
  2. Add about 5 cups of powdered sugar to the melted marshmallows. Stir gently until a sticky dough begins to form.
  3. Coat your hands and a clean work surface with vegetable shortening. Transfer the mixture onto the surface and begin kneading like dough.
  4. Gradually add the remaining powdered sugar while kneading, reapplying shortening to prevent sticking. Continue kneading until the fondant becomes smooth, elastic, and no longer sticky.
  5. If the fondant feels too dry or cracks, add a small amount of water a little at a time and knead until it becomes flexible and smooth.
  6. Shape into a ball and coat lightly with shortening before using or storing.

Notes

  • Wrap tightly in plastic wrap and store in an airtight bag at room temperature for short-term use or refrigerate for longer storage. Let it come to room temperature before rolling for best results.
  • Prep Time: 15 minutes
  • Cook Time: 5 minutes
  • Category: Dessert
  • Method: No-Bake
  • Cuisine: American

Nutrition

  • Serving Size: 1 ounce
  • Calories: 140
  • Sugar: 34
  • Fat: 2
  • Carbohydrates: 36

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