How to Make Homemade Marshmallow Fondant in Just 15 Minutes

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Making your own marshmallow fondant (MMF) is easy — so easy, in fact, that you can do it in your microwave! But that's not even the best part: DIYing your fondant actually gives you way more control over the finished product, and this recipe is more elastic and easier to work with than many traditional fondant recipes. Once you give it a try, you'll be hooked!

DIY Marshmallow Fondant

Ingredients

  • 4 cups (1 pound and 2½ ounces/520 grams) confectioners sugar
  • 2 tablespoons (30 ml) water or lemon juice
  • 3½ cups (9 ounces/250 grams) mini marshmallows
  • ⅔ cup (2¾ ounces/80 grams) white baking chocolate or white candy melts, chopped
  • Food coloring (optional)

Pro Tip

Wonder why we included the chocolate? That's the magical secret! Including candy melts makes your fondant firmer, more elastic and easier to use. Plus, it stops it from sagging or drying out. Win-win!

Instructions

1. Melt the Marshmallows

Put the marshmallows and the water or lemon juice in a large microwave-safe bowl. Heat the mixture at full power for 40 seconds. Stir well.

Return to the microwave and heat at full power, stirring at 30-second intervals, until all the marshmallows have melted and the mixture is smooth.

2. Bring On the Chocolate

Add the chopped chocolate to the warm melted marshmallows and stir until the chocolate is melted and no lumps are visible. Pro tip: You can even use colored candy melts here — instant colored fondant!

3. Time for Color!

If you prefer to use food coloring rather than colored candy melts, this is the moment to add them. Dip a toothpick into gel food coloring and add a small amount at a time (or use an eyedropper to drop liquid food coloring into the mix). Blend until you reach your desired color.

Pro Tip

Gel coloring is the best since it doesn't affect texture, but if you only have liquid food coloring available, add some extra confectioner's sugar or 1 teaspoon (5 ml) of CMC powder, Tylose powder or gum tragacanth per one recipe marshmallow fondant to firm things up.

4. Mix It All Up

Sift the confectioners sugar into a large bowl and make a well in the center. Pour the marshmallow mixture into the well. Blend with a wooden spoon, spatula or an electric mixer fitted with dough hooks. Mix until you have a sticky paste, and all of the confectioners sugar has been incorporated. (Be careful using your electric mixer; this is thick stuff, and you could burn out the motor if you overwork it.)

5. Knead!

If the paste becomes too firm nearing the end of mixing, knead the last bit of sugar into the marshmallow fondant with your hands. Continue kneading by hand until your fondant is delightfully smooth. (Doesn't it feel lovely?!)

Troubleshooting Your Fondant

If you're not getting exactly what you bargained for, don't sweat it. It could be the weather, or some other variable messing with your consistency — everything can be fixed!

If Your Fondant Is Too Soft

Knead 15 ounces (420 g) of modeling chocolate into one recipe of marshmallow fondant.

If Your Fondant Feels Dry or Too Firm

Mix an equal amount of store-bought fondant into the marshmallow fondant. Or, knead a few teaspoons of melted vegetable shortening or glycerine, or a few drops of cooled boiled water into the fondant to soften and make it more elastic.

How to Store MMF

If you're not using your fondant right away, spray plastic wrap or a zip-top bag with non-stick spray and place your fondant inside. It will keep for two months at room temp, four months if refrigerated and six months if frozen. When you're ready to use, bring it back to room temperature before using. You may also need to microwave it for about 30 seconds before rolling it out.

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How to Make Homemade Marshmallow Fondant in Just 15 Minutes