Homemade Marshmallows

by Sue

Do homemade marshmallows go moldy?

I recently made some chocolate marshmallows using 100% cocoa powder, and dusted it with the cocoa powder and some icing sugar.

I noticed that there is some white-moldy thingy developed on the outside in less than a week.

I make other marshmallows as well (vanilla) but I didn't notice this (probably because it's white too?). Is this normal? Or is that not really moldy?

I live in a tropical country so the weather is probably a little more humid than others. I keep the marshmallows in an airtight container.

Hi Sue,

I haven't tried making homemade marshmallows yet, though it is on my "To Do" list. :) I guess my biggest fear is not the results or the work involved, but the knowledge that I will most likely make myself a pig by eating the majority of the batch myself in no time flat!

I'm not one that usually has to worry about candy, or any sweets for that matter, going moldy. More's the pity!

I'm not for sure what that white stuff is on your homemade chocolate marshmallows. My thoughts are that it may be the sugar crystallizing again after setting for a while.

What recipe do you use to make your homemade chocolate and vanilla marshmallows? Can you share it hear with us? Does it include egg whites like some marshmallow recipes?

I wouldn't think that egg whites would be an issue because you would obviously cooking it to a high temperature for some time, but I suppose it's possible.

Humidity can be a real problem. I know because I also live in the tropics and it's a real challenge when it comes to candy making.

I've read comments from different people who make their own marshmallows and some people claim that they store their marshmallows at room temperature for many weeks without them spoiling or going moldy.

Of course, they won't taste as fresh after the first few days, but whether they go "off" or not, I just can't say with much authority. Maybe one of our other visitors who has some marshmallow making experience will add their advice below.

Hope you can share your recipe with us. Maybe I'll give a try for my next candy making adventure. :)


Comments for Homemade Marshmallows

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Nov 25, 2011
Easy Marshmallow Recipe NEW
by: Angie

Hi Sue,

Thanks for that easy marshmallow recipe. It doesn't seem like it would go moldy, does it?

I'm certainly thinking that if the only difference with the chocolate marshmallows is the cocoa powder, that it very well may be the sugar crystallizing after a few days that is causing that white "stuff."

So far, none of the other "marshmallow makers" have found your post and chimed in with their advice, but hopefully they will eventually.

Meanwhile, I guess you'll just have to take some extra care with storage because of the humidity in your region - - or do what I do - - EAT THEM QUICK! :)

Nov 24, 2011
Vanilla Marshmallows Recipe NEW
by: Sue

Thanks for your reply!

No my recipe didn't use any egg white. I use a simple no corn syrup version. Here goes:


3 tablespoons unflavoured gelatin

2 cups sugar

1 cup water

1/4 teaspoon salt

1 teaspoon pure vanilla extract

Icing sugar and corn starch (about 1/4 cup each)


1. Line a large pan with parchment paper. Lightly grease it, and sprinkle icing sugar + corn starch over it.

2. Soak gelatin in 1/2 cup of water. Let it stand for 10 minutes.

3. While waiting, boil sugar and remaining water until it reaches 238 Fahrenheit.

4. Remove the syrup from heat and pour over gelatin.

5. Beat at medium-high speed until cool, approximately 10 minutes. Add vanilla extract half way.

6. Pour the marshmallow mixture into the prepared pan. You may need to use a greased spatula to make it smooth. Let it sit for at least 6 hours – overnight is best.

7. Lightly dust your working area with icing sugar + corn starch mix and turn your marshmallows over. Cut with a cookie cutter (greased or dusted with icing sugar + corn starch), pizza cutter, or scissors. They all work well. Coat each marshmallow with more icing sugar + corn starch.

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