Marshmallow Play Dough

homemade play dough

We tried this super cool edible play dough activity today with marshmallows and - to my great surprise! - it turned out super well!  

(I'm not always so great at following instructions and making experiments work.... This one was fairly fool-proof.  Hooray!)

A handful of marshmallows stashed in my parents' cupboards, some food colouring from our last science experiment (lava bottles were super cool), and some coconut oil and flour.

Then: marshmallow play dough!  Super neat.

And you can eat it.

DIY edible play dough

The kids played with this for all of 5 minutes...which is about average for my little guys.

Science experiments (or arts and crafts, or story time, or anything that's not running and wrecking...) go something like this in my house:

Mommy: Hey kids!  Let's do a science experiment today.

Z: Yeah!  Science experiment!  *jumps up and down and flaps his arms*

E: I want to drive trucks.

Mommy: It'll be super fun!  We're making lava bottles today.  (Or marshmallow play dough, or rocket ships....)

Z: Yeah!  Lava bottles! (Or marshmallow play dough, or rocket ships....)  *jumps up and down and flaps his arms*

E: I want to build trucks with Lego.

Mommy: *Gets all the stuff for the science experiment, and tries to prevent kids from dumping all the ingredients before we even get started.

Science experiment lasts 5-15 minutes.  Kids are super excited.  Lots of jumping and arm flapping.  We try not to knock everything flying and create a gooey kitchen mess in the process.

The SECOND it's over: Everyone's driving trucks.

Needless to say, some days we do 3 science experiments in the span of 15 minutes.

It's a total mommy whirlwind in here.  Like all the time.

Then we spend the rest of the day driving trucks and building trucks and talking about trucks.

Oh!  Yeah.  And our marshmallow play dough activity, of course, was making a truck out of play dough.

Kid success.

marshmallow play dough
Whole wheat flour makes play dough a little spotty.

Original recipe for marshmallow play dough is from The 101 Coolest Simple Science Experiments (Get it here: USA | Canada).

We just played with this stuff like regular play dough, but you can also turn this into a science lesson and talk about how heat and cold affect molecules.

Edible science = my favourite science.

All you need is marshmallows, coconut oil or butter, food colouring, and flour.


  • 2 giants marshmallows, 6 large Peeps, or a handful of small marshmallows
  • glass bowl
  • spon
  • 1 tablespoon melted butter or coconut oil
  • 1 cup flour (original recipe called for powdered sugar - we didn't have it, and I didn't want my kids in total sugar meltdown should they eat the playdough)
  • a few drops of food colouring if you're using plain marshmallows
kids science experiments edible play dough


  1. Melt marshmallows in the microwave for about 10-15 seconds.  Watch as they expand.
  2. Mix melted coconut oil (or butter) and food colouring into the melted marshmallow.
  3. Add flour and mix until the marshmallow dough is no longer super sticky.
  4. Roll your dough into a ball and shape like regular play dough.

This stuff is edible!  (Especially if you use flour instead of powered sugar.)  So your kids can eat it after they play with it. 

Get the book and do ALL the experiments!  (USA | Canada)

2 Comment

  1. al says: Reply

    Hi Rebecca,

    I have to admit, this article brought a smile to my face. We’re homeschooling our two boys, which means there’s a lot of time to do these sorts of experiments. You’re so right about the short time-spans – the boys are like a couple of little tornadoes. There’s a few minutes of intense fun, and then they move onto something else, leaving a huge mess in their wake.

    Anyway, thanks for the marshmallow play-dough tip… Terrific. I know that in a few days’ time, I’ll probably be on my hands and knees picking dried, brightly colored play-dough out of the carpet and off the sofas 😉

    1. Rebecca says: Reply

      Hahaha.  Tornadoes indeed!  I think there’s something in boy DNA…. Sometimes I see little girls sitting quietly and wonder what the heck is going on.  Mine never stop moving.  Like ever.  🙂 

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