Homemade Marshmallows

Homemade Marshmallows

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Homemade marshmallows are one of my favorite things to cook. You take ingredients that aren’t exciting on their own – corn syrup, sugar, gelatin – and turn them into something magical and completely different from what you start with.

Plus, they’re really pretty easy. I think they’re the easiest candy you can make from scratch.

I first made marshmallows in 2010 as my 344th recipe of my 365 recipe challenge. I’d never given a thought to making marshmallows before, but the year prior, a coworker’s husband had made marshmallows and shared them with us. They were amazing!

I am generally not a marshmallow person, but homemade marshmallows are different. They’re soft. They’re creamy. They’re fluffy. They’re springy. They’re a delicious confection that is maligned by all bagged grocery store versions you come across. Homemade marshmallows are so superior to prepackaged ones that they’re practically a different food.

[This post contains affiliate links. I may make a commission for purchases made through links on this post.]

I originally tried two recipes when I started making marshmallows – Alton Brown’s, and King Arthur Flour’s. Alton Brown’s was fine, but he included cornstarch in the coating and that created too much of a crust. He also whipped them an incredibly long time. King Arthur Flour’s was less fussy and turned out much better, and is where I’ve adapted my recipe from.

prepared pan for homemade marshmallows, dusted with powdered sugar

In the 7 years since I made my first batch, I’ve made at least two batches of marshmallows a year to give to my friends and family as food gifts. Last year I made four! One batch is always chocolate chip marshmallows. The other is always this vanilla version. I love the vanilla ones for floating in hot chocolate, whereas the chocolate chip ones are perfect for eating. (Chocolate chips end up at the bottom of your hot chocolate mug if you use them for that.)

Each year, I wonder if I should fancy up my marshmallows. Should I try peppermint? Should I add food coloring (which would confuse people if I didn’t make them flavored)? Should I decorate them? Should I cut them into fun shapes? But I don’t. I like them too much as they are.

Ingredients for marshmallows are simple: sugar, corn syrup, vanilla, and gelatin, plus a little water. People like to avoid corn syrup, but marshmallows are all-sugar treat anyway, so it doesn’t bother me. You could try honey, agave, or golden syrup instead, but they will likely add a different flavor, and I haven’t tried them.

Gelatin: I’ve always used the powdery Knox brand in these, or a generic brand if I find it. I have tried a vegan, agar-agar based marshmallow recipe before; it did not turn out, dramatically. I also expect other thickeners will not work.

One box of gelatin will be enough for one batch of marshmallows, with one packet of gelatin leftover. (If you find you love making marshmallows, you can order a giant package of gelatin (affiliate link) from Amazon, like I did; the dates on it should be good for a couple of years.)

homemade marshmallows' syrup at 240F

Since marshmallows are a confection, you need a candy thermometer (affiliate link). I like mine, pictured above, as it rests safely on the bottom of the pan without the bulb touching the bottom. You’ll need an electric mixer to whip them up; I’ve always used my stand mixer, but I expect that you can use a handheld one as well.

To make marshmallows, you boil sugar, corn syrup, and water until it reaches the soft ball stage of candy, around 240F. Pour into softened gelatin, and whip for a while with an electric mixer. Add vanilla, then spread into an oiled and powdered sugared-pan, and let rest for several hours or overnight to firm up. Cut and enjoy. I’ve used a pizza cutter in the past, but I used my bench scraper (affiliate link) to cut them relatively evenly this year.

homemade marshmallows, dusted with powdered sugar


I store marshmallows in tins lined with waxed paper. Homemade marshmallows last for at least a month. The powdered sugar on them may give them a little crust, but they’re still soft and delicious. Longer than a month, they will dry out, but they will still be pretty tasty in hot chocolate.

Marshmallows will go bad if exposed to moisture or heat. They ship well enough; make sure they are dusted well with powdered sugar so they don’t stick to your packaging. I think they are my family’s favorite food that I send them.

Like this recipe or have questions? Rate this recipe or leave a comment below!

In the past:

Three Years Ago: Yeasted Banana Sandwich Bread, Italian Bread

Four Years Ago: Cranberry and Pistachio Biscotti, Homemade Chocolate Marshmallows, Sauteed Swiss Chard with Orange

Five Years Ago: Date Nut Spice Bread

Six Years Ago: Snickerdoodle Cake with Brown Sugar Cinnamon Buttercream

Seven Years Ago: Lemon and Ginger Scones; Ultimate Sourdough Baguettes; Cherry, Almond, and Cinnamon Granola

5 from 1 vote
homemade marshmallows
Homemade Marshmallows
Prep Time
20 mins
Cook Time
30 mins
Resting Time
4 hrs
Total Time
50 mins

Homemade marshmallows are so much better than prepackaged, store-bought ones. They are easy to make; you just need a little time. They will need at least 4 hours to cool and set up.

Course: Dessert
Cuisine: American
Keyword: homemade marshmallows
Servings: 48
Author: Leona Konkel
  • 3 packets powdered gelatin
  • 1 cup cold water (divided) (227 grams)
  • 1 1/2 cup sugar (300 grams)
  • 1 cup corn syrup (312 grams)
  • 1 tablespoon vanilla (15 grams)
  • powdered sugar (about 1/2 cup) (for dusting the pan and marshmallows)
  • mix-ins, if desired
  1. Stir gelatin and 1/2 cup water (113 grams) together in the bowl of a stand mixer (or another large bowl if using a handheld electric mixer). 

  2. In a heavy medium saucepan, combine sugar, corn syrup, and 1/2 cup water (113 grams). Heat over medium to medium-high heat, stirring to combine. Bring mixture to a boil. 

  3. When it boils, place a candy thermometer in it, and heat until it reaches 240F. (You can stir or not stir; it hasn't made a difference for me.) This step can take as little as 10 minutes, or as long as 30, depending on the heat of your stovetop.

  4. Turn stand mixer on low, and break up the softened and bloomed gelatin using the whisk attachment. With the mixer still running, pour in the syrup. Turn the mixer up to high and whisk for 7 minutes. The mixture will grow in volume and turn white and frothy.

  5. While the mixer runs, prepare your pan. Spray the bottom and sides of a 9x13-inch pan (I prefer glass for easy clean-up) with cooking spray and Dust completely with powdered sugar. Set aside.

  6. After the mixture has been whisked for 7 minutes, it will be fluffy and white. Drizzle in the vanilla, very slowly, along the side of the bowl. (If you pour it in directly or too fast, it will spatter.) Mix for 30 seconds or a minute, until completely incorporated. If desired, add in other mix-ins now and mix for another 30 seconds. 

  7. Use a greased spatula to spread the marshmallows into the prepared pan. Smooth out the top as best as possible. Dust with powdered sugar. Cool for a few hours, then cover and let set overnight, or at least 4 hours.

  8. Turn out onto a cutting surface. (I turn mine out an oversized cutting board.) You may need to use a spatula or knife to loosen the edges of the mallows from the side of the pan, but I've been able to pull mine out easily with my hands most recently. 

  9. Cut into cubes using a pizza cutter or bench scraper. Coat with additional powdered sugar, particularly along the cut edges.. Store between layers of waxed paper in an airtight container at room temperature. 

Recipe Notes

A candy thermometer is essential for this recipe.

I've always made homemade marshmallows using a stand mixer. You should be able to use an electric handheld mixer, but you will have to mix for longer, and they may not be as fluffy.

For softer, creamier marshmallows, you can try to cut the gelatin back to 2 packets. However, I have not tried this.

Try dusting with powdered sugar blended with cinnamon or cocoa powder for a variation. You can add peppermint or other extracts, or crushed candy canes if desired.

Originally adapted from King Arthur Flour

(Post updated with new writing, photos, and recipe. Originally published December 29, 2010.)

2 thoughts on “Homemade Marshmallows”

  • 5 stars
    These are delicious and were so much easier to make than I anticipated. I am so excited to see how the kids like them in their hot chocolate tomorrow! (I taste tested too and they are super yummy!)

    • I’m so glad that they turned out for you, and that you thought they were easy as well. I was surprised the first time I made them! I hope the kids loved them. We end up sampling a lot while we cut them up 🙂

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