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Edible Marshmallow Slime

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We are loving edible slime in our house right now. I have a new recipe for you today: an Edible Marshmallow Slime recipe! This one is based on the homemade marshmallow fondant I like to make for cake decorating. It is a kid favorite now! It is so fun to play with.

Edible Marshmallow Slime with Sprinkles


Ingredients for Edible Marshmallow Slime

marshmallow slime ingredients

1 Bag of Mini marshmallows or jumbo marshmallows

1/4- 1/3 cup Coconut Oil or any vegetable oil -add more to make it less sticky

1/2 cup Powdered Sugar

Rainbow Sprinkles or Edible Glitter Stars– optional but fun! We added 1-2 Tbsp.

You could also add food coloring if you want it to be colored!

Large microwave safe bowl


How to Make Marshmallow Slime

marshmallow sprinkle slime

Pour the whole bag of marshmallows into a large microwave safe mixing bowl. Microwave for 30 seconds and stop. Mix the marshmallow mixture, then repeat in the microwave. Two times was enough for our marshmallows to be entirely melted. Stir until the marshmallows are all dissolved.

Add in the powdered sugar and 1/4 c. of oil. Mix well.

Let it cool for about 15 minutes. Coat your hands in some of the remaining oil and mix by hand. It will be really sticky, but you can continue adding a little oil until it can be held and played with without sticking entirely.

Mix in 2-3 Tablespoons of rainbow sprinkles. The color bleeds a bit as you mix it in, and it looks really cool and colorful this way!

edible marshmallow slime

It is completely taste safe, fully edible. So go ahead, play, and eat. Whatever makes you happy! (This is surprisingly delicious- I mean, marshmallows, come on!)

marshmallow slime with sprinkles

How to Make Slime Less Sticky

These edible slimes are a LOT more sticky than regular slime since they are made of sugary foods. Sugar is naturally going to be really sticky. They are best played with on a washable surface!

If you want to make your slime less sticky, it helps to coat your hands in some oil or shortening if you still have any of that stuff hanging around. 😉 If your slime is still too sticky, you can also dust the marshmallow slime with a little corn starch to make it a touch less sticky.

stretchy marshmallow dough

This slime was really stretchy on the first day, the second day it was less stretchy, but also a lot less sticky. You can see the difference in texture on the second day. Both were fun to play with.

edible marshmallow and sprinkle slime dough

Love Edible Slime Recipes?  I have a whole recipe book of them!


Also check out a few other recipes on my site!
Starburst Slime
Laffy Taffy Slime
Chocolate Slime

You may also like my Marshmallow & Toothpick Geometry post!







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  1. I would love to do this with my students as a fun Friday activity. About how much does this recipe make of Marshmallow slime. I have 17 students and just wanted to see how I could do this. GREAT PROJECT ! I look forward to hearing from you.

    1. You will definitely want to make more for a larger group. You can see the amount it made in the picture where I hold it in my hands. It was a large ball, but for 17 kids, you would probably double or triple this recipe. Have fun!

  2. This was fun but so sticky!!! Halfway through we put our hands in plastic bags and nothing stuck!
    We still had the sensory experience but less messy
    Thanks for sharing!

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