How to Make Marshmallow Fondant

Marshmallow fondant recipe

The Spruce / Julia Hartbeck

  • Total: 10 mins
  • Prep: 10 mins
  • Cook: 0 mins
  • Yield: 1 1/2 lbs. Fondant (24 servings)

Did you know it's easy to make your own fondant at home? Not only is it fast and simple, but homemade marshmallow fondant actually tastes better than most store-bought brands! The secret ingredient is mini marshmallows―they give the homemade fondant a wonderfully sweet, light vanilla flavor.

You can use marshmallow fondant as you would regular fondant. It's perfect to cover cakes, form shapes, and make candy. Be warned that it tends to get sticky in moist places or humid weather, so it doesn’t hold up as well as regular fondant when placed over frosted cakes and refrigerated for days.

This recipe yields 1 1/2 pounds of fondant and can easily be halved or doubled. If you're wondering how much fondant you need to cover your cake, use a conversion chart.

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Ingredients

  • 8 ounces miniature marshmallows (4 cups not packed)
  • 2 tablespoons water
  • 1 pound powdered sugar (4 cups, plus extra for dusting)
  • Optional: food coloring or flavored extracts

Steps to Make It

  1. Gather the ingredients.

    Imgredients for marshmallow fondant
    The Spruce / Julia Hartbeck
  2. Dust your counter or a large cutting board with powdered sugar.

    Dust counter
    The Spruce / Julia Hartbeck
  3. Place the marshmallows and the water in a large microwave-safe bowl. Microwave on high for 1 minute, until the marshmallows are puffy and expanded.

    Place marshmallows in bowl
    The Spruce / Julia Hartbeck
  4. Stir the marshmallows with a rubber spatula until they are melted and smooth. If some unmelted marshmallow pieces remain, return to the microwave for 30 to 45 seconds, until the marshmallow mixture is entirely smooth and free of lumps.

    Stir marshmallow
    The Spruce / Julia Hartbeck
  5. If you want colored or flavored fondant, you can add several drops of food coloring or extracts at this point and stir until incorporated. If you want to create multiple colors or flavors from one batch of fondant, do not add the colors or flavors now. Instead, refer to step 9 below for instructions.

    Stir
    The Spruce / Julia Hartbeck
  6. Add the powdered sugar and begin to stir with the spatula. Stir until the sugar begins to incorporate and it becomes impossible to stir anymore.

    Add powdered sugar
    The Spruce / Julia Hartbeck
  7. Scrape the marshmallow-sugar mixture out onto the prepared work surface. It will be sticky and lumpy, with lots of sugar that have not been incorporated yet―this is normal.

    Scrape marshmallow mixture
    The Spruce / Julia Hartbeck
  8. Dust your hands with powdered sugar and begin to knead the fondant mixture like bread dough, working the sugar into the marshmallow with your hands. Continue to knead the fondant until it smooths out and loses its stickiness. Add more sugar if necessary, but stop adding sugar once it is smooth―too much sugar will make it stiff and difficult to work with. Once the fondant is a smooth ball, it is ready to be used. You can now roll it out, shape it, or wrap it in cling wrap to use later.

    Dust with powdered sugar
    The Spruce / Julia Hartbeck
  9. If you want to add coloring or flavoring to your fondant, flatten it into a round disc. You might want to wear gloves to avoid getting food coloring on your hands during this step.

    Flatten
    The Spruce / Julia Hartbeck
  10. Add your desired amount of coloring or flavoring to the center of the disc.

    Add food coloring
    The Spruce / Julia Hartbeck
  11. Fold the disc over on itself so that the color or flavor is enclosed in the center of the fondant ball.

    Fold disc over
    The Spruce / Julia Hartbeck 
  12. Begin to knead the ball of fondant just like you did before. As you work it, you will begin to see streaks of color coming through from the center.

    Begin to knead
    The Spruce / Julia Hartbeck
  13. Continue to knead until the streaks are gone and the fondant is a uniform color.

    Continue to knead
    The Spruce / Julia Hartbeck
  14. Your fondant is now ready to be used or stored as outlined above.

    Your fondant is ready to use
    The Spruce / Julia Hartbeck

Tips

  • Dust your hands with powdered sugar before kneading to help keep the fondant from sticking.
  • Use plastic gloves when adding color to your fondant so you don't accidentally dye your hands in the process.
  • Well-wrapped fondant can be stored in a cool room or in the refrigerator and needs to be kneaded until supple before later use.