Move over jumbo marshmallows, we have a new slime recipe and it uses marshmallow fluff instead! You will love this because it’s a simple, edible slime recipe that is no cook! We have tons of fun and easy edible slime recipes for you to try, like this 2 ingredient stretchy fluff slime.

Easy Marshmallow Slime

We love making slime with marshmallows because they make for awesome stretchy and tasty slime that’s perfectly edible too! But how about a no cook version so you don’t have to worry about temperature or having a microwave oven available?

This DIY edible marshmallow fluff slime is perfect, and my rock star slime maker Char really shows us how much she loves making edible slime. Awesome tween and teen slime making activity that’s a little different from our traditional fluffy slime recipe.

The best part of this marshmallow fluff slime recipe…

  • It’s completely edible!
  • It’s an easy 2 ingredient slime recipe.
  • It doesn’t use corn starch
  • It’s totally DIY!
  • It doesn’t need to be heated!


Below you can see how Char mixed this blue marshmallow fluff slime with the pink (strawberry) marshmallow slime! It’s a different recipe that’s super fun too!


How Do You Make Fluff Slime?

It all starts with the right ingredients, and I don’t mean saline solution and glue! If you need something different from our basic slime recipes with glue, you need marshmallow fluff…

What makes it stretchy and not too sticky? Read on for all the details.

MAKE SURE TO CHECK OUT: All of our edible slime ideas! We have lots to share and lots more to come!

Powdered sugar is the key to reducing the stickiness and adding firmness to your marshmallow slime!

Although you can use cornstarch or a mixture of corn starch and powdered sugar, the taste will be affected. However, you can achieve a firmer substance when using cornstarch.

Sugar is a sticky substance, so in general edible slime is a bit stickier and messier then non-edible slime. To help with the stickiness, you can coat your hands with cooking oil for easier kneading.

This no cook, edible marshmallow slime is perfect for your youngest slime fans who want to taste everything and want to get their hands right into the mixing process.


Edible Marshmallow Fluff Slime and The 5 Senses

Squish, squeeze, pull, and stretch your marshmallow fluff slime! Once you learn how to make edible marshmallow fluff slime recipe, you can experiment with other flavors or candies if you like.

One of the best parts of a marshmallow slime is the sensory experience! You can easily talk about the 5 senses with your kids. What does marshmallow fluff slime feel like?

This marshmallow slime recipe is messy and fun, but you can also taste it and smell it! Can you hear slime? You tell me!

Unlike our regular homemade slime recipes, this edible fluff slime recipe won’t last as long. Make sure to store in a covered container, and it should be good for another round of play the next day. Although you may find the texture has changed somewhat.

Printable Slime Recipe Guide


Marshmallow Fluff Slime Recipe

Note: This may be easier to mix in small quantities.


  • A container of Marshmallow Fluff
  • Powdered Sugar
  • Food Coloring

How To Make Marshmallow Fluff Slime

STEP 1. Start by mixing the food coloring into the fluff. You can either do this in the fluff container or transfer the marshmallow fluff to a bowl.

STEP 2. Pour 1 cup of powdered sugar onto a clean surface and spoon the marshmallow fluff on top!

STEP 3. Continue to knead powdered sugar into the mixture until you achieve your desired consistency.


Continue to add powdered sugar to the mixture till stickiness is gone!


You can continue to knead and stretch, adding powdered sugar to keep from sticking. This edible fluff slime contains sugar and sugar eventually sticks!  If you play a long time  with your marshmallow slime, you will have to add more powdered sugar.

Note: A few drops of vegetable oil on the hands before kneading can also help with the stickiness!

Edible slime can sometimes resemble a stretchy playdough type of substance, but this one has a great stretch! An edible slime will never have completely the same feel as our traditional homemade slime recipes.

However, you can feel confident knowing that they are perfectly safe for kids of all ages! If you want to learn how to make slime you can eat, this one is perfect!


Continue to knead and play with your marshmallow slime, and incorporate more powdered sugar as needed.


More Edible Slime Recipes To Make

See all the ways we LOVE to make edible slime and edible science activities with kids. Using food is always a hit. Click on photos below to learn more.

Edible Slime Recipes

Edible Science Experiments For Kids


  1. I was looking for an edible slime recipe that was gluten-free and dairy free due to kids allergies and this was a major hit!

    I couldn’t believe how easy it was! It turned into a sensory activity, with the kids mixing it as it became more and more firm, and a craft! I did this with a group of 6 kids, aged 6-9. It was a hit and they loved it!

    Thank you !!

  2. Awesome! So happy to hear that! We have quite a few edible recipes that would be gluten-free including starburst and jello and gummy bear I bet!

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