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Marshmallow Fondant Recipe

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Marshmallow fondant is delicious and easy to make.  It is the perfect way to decorate cupcakes, cakes, and cookies like a professional!

Last month we shared with you some easy fondant decorating ideas using fondant you can buy at the store. Today we’re going to show you how to make your own marshmallow fondant that is not only easy, it tastes amazing too! Your cupcakes and sugar cookies are going to look amazing!

three flattened balls of marshmallow fondant stacked on top of each other on a counter covered with powdered sugar. The ball of fondant on top is light blue, the middle one is light purple and the bottom one is light pink. In the background are three bottles of Wilton gel food coloring.

Easy Marshmallow Fondant

Have you ever seen those beautiful cakes, cupcakes, and cookies at a fancy bakery, and wondered how they made them look so perfect? The answer is fondant! Fondant is a thick sugar paste that’s used in pastry decorating and is easier and more stable to use for decorations than buttercream or other icings.

Unlike other regular types of frosting, fondant creates a very smooth surface on your favorite baked goods that you’re trying to decorate.  This marshmallow fondant not only tastes great, but it’s easy to make at home too. It’s the perfect way to take your decorating up a notch!

How to Make Marshmallow Fondant

Marshmallow fondant is surprisingly easy to make! You’ll need the following ingredients; mini marshmallows, water, powdered sugar, and vanilla extract, plus gel food colors (I like the Wilton brand) if you want to color it different colors and then you’re ready to go.

  1. Add the marshmallows to a microwave-safe bowl and then sprinkle the water over the top of the marshmallows
  2. Heat in the microwave on high for 30 seconds and then stir
  3. Continue to heat in 30 second increments until the marshmallows have completely melted
  4. Stir in the vanilla with the melted marshmallow
  5. Add half of the powdered sugar and then stir until combined – note that it will be very sticky and hard to stir
  6. Continue to add in the remaining powdered sugar until the mixture has the consistency of playdough
  7. If you want to color the fondant, separate the amount you want to color and add in a few drops of the gel food color and then knead the dough into the fondant

a white ball of homemade marshmallow fondant on a counter. Behind the ball is a box of Wilton gel food colors and a bag of marshmallows.

Tips For Making Marshmallow Fondant

  • It’s very important to use gel food coloring (as opposed to water-based food coloring) for the best results. You can buy it at most grocery stores, and I’ve found a wide selection of gel food coloring at Walmart in the cake decorating section.
  • I found it easiest to knead the food coloring in while wearing gloves that I dusted in powdered sugar. It will take a little work to get it evenly distributed, but keep working and it will come together.
  • If the fondant is too sticky, you can add a little more powdered sugar to the mix

on a counter dusted with powdered sugar a piece of light pink marshmallow fondant has been rolled out flat and a flower shaped piece has been cut out near the top. Above it is a flattened ball of homemade purple marshmallow fondant and a wood rolling pin.

How To Use Marshmallow Fondant

So now that you have your colorful marshmallow fondant, what can you make with it? The sky is the limit! Just like play dough, it’s easy to roll out and shape in any number of ways, which makes it perfect for decorating cakes, cupcakes, and cookies.

One of my favorite and easy ways to use marshmallow fondant is as a topper for sugar cookies. Just roll out the fondant, cut it with the same cookie cutters as you used for the cookies, and attach it to the top of the cookie with a small amount of buttercream.

a sugar cookie with white fondant made from marshmallows is on a counter. Hoovering over the air is an icing spatula with a glob of fondant on the tip. Next to the cookie are stacks of additional unfrosted flower-shaped sugar cookies. On the other side of the image is flattened pink marshmallow fondant.

And voila! A perfectly frosted cookie that tastes delicious and looks like it came from a bakery. It doesn’t get easier than that! You can make the cookies as simple or elaborate as you like. If you’re looking for a great recipe to use, this Sugar Cookie Recipe is one of our favorites!

a sugar cookie in the shape of a flower is topped with pink homemade marshmallow fondant.

How To Store Marshmallow Fondant

If you’re making the cookies ahead of time, be sure to store them at room temperature, in an airtight container, to prevent the fondant from drying out. If stored this way, the cookies should stay fresh for about 3 to 5 days.  Enjoy using fondant to make all of your baked goods more beautiful!

If after decorating your cookies or cupcakes you have leftover marshmallow fondant you can store it and save it to use for another time.  Marshmallow fondant can dry out quickly, so I like to first wrap it in plastic wrap and then place it into an airtight container for storage.  Stored at room temperature (do not refrigerate or freeze it) the fondant should stay fresh for about 2 months.

a stack of sugar cookies topped with either pink, light green or purple marshmallow fondant. One cookie with purple fondant is on it's side leaning against the stack of cookies and a few other cookies are laying flat on the counter around the stack.

More Recipes Using Marshmallows

Other Easy Desserts

Marshmallow Fondant Recipe

I love this recipe because you can make so many fun and adorable looking treats with it.  Be sure to tag us on social media and show us all of the fun desserts you made with this recipe or leave us a comment below if you try it! We always love to see what you’re up to in the kitchen!

three flattened balls of marshmallow fondant stacked on top of each other on a counter covered with powdered sugar. The ball of fondant on top is light blue, the middle one is light purple and the bottom one is light pink. In the background are three bottles of Wilton gel food coloring.
4.86 from 7 votes

Marshmallow Fondant

This delicious and easy to make marshmallow fondant is the perfect way to decorate cupcakes, cakes, and cookies like a professional!

Course Dessert
Cuisine American
Keyword baking, cookies, cupcakes, frosting, sweets, treats
Prep Time 15 minutes
Total Time 15 minutes
Calories 250 kcal


  • 8 ounces mini marshmallows
  • 1 tablespoon water
  • 1/2 teaspoon vanilla extract
  • 1 pound powdered sugar
  • gel food coloring


  1. Add the marshmallows to a microwave safe bowl. Sprinkle the water over the top. Microwave for 30 seconds on high, stir, then microwave for 30 more seconds, or until the marshmallows are completely melted. Stir in the vanilla extract.
  2. Add half of the powdered sugar, and stir to combine using a sturdy spoon. It will be very sticky and may be difficult to stir, but keep at it! Add additional powdered sugar to make a dough that has the consistency of play dough. You may need to knead it with your hands to make it smooth.
  3. To color the fondant, add a few drops of gel food coloring into a ball of fondant, and knead the food coloring into the fondant until evenly distributed. Wear gloves to prevent transferring the food color to your skin, and add additional powdered sugar if the fondant gets sticky.
  4. Roll out and use to top cookies or cupcakes. Store in an airtight container.
Nutrition Facts
Marshmallow Fondant
Amount Per Serving
Calories 250
* Percent Daily Values are based on a 2000 calorie diet.

the top half of the image has three different pastel colored flattened balls of marshmallow fondant. The bottom half of the image has a stack of sugar cookies topped with homemade marshmallow fondant with a few other cookies scattered on a counter top. Between the two images is a write box that has the words Easy Marshmallow Fondant written inside.

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