Want to know how to make edible slime with marshmallows? Here is a fun edible slime recipe that’s OK if a nibble happens! Have kids who will forever taste things or are too young to know not to taste everything. Grab some marshmallows, oil and cornstarch and make this fun marshmallow slime that also doubles as a cool putty idea! Homemade slime is what we love to play with here!
How To Make Edible Slime With Marshmallows
Note: While this is considered an edible slime, it is not meant to be a food source. I am pretty sure this isn’t the healthiest thing to consume. However we are talking about safety, so this edible slime is perfectly fine if a little is consumed.
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Ingredients:
- 6 Jumbo Marshmallows {make a jumbo marshmallow catapult too!}
- 1 TBL Cooking Oil
- 1/2- 1 TBL Cornstarch Powder
CLICK HERE TO MAKE>>> Marshmallow Slime without cornstarch
Instructions:
Note: Adult supervision and assistance highly recommended. The marshmallows will get very HOT in the microwave. Always make sure the materials are cool enough to handle!
STEP 1: Put 6 marshmallows in a microwave safe bowl and pour 1 TBL of oil into the bowl.
STEP 2: Microwave on high for 30 secs. We have a 1200 watt microwave oven so your time may vary slightly.
STEP 3: Add 1/2 tablespoon of cornstarch to the heated marshmallows and mix. We used jumbo marshmallows!
STEP 4: This mixture will be HOT so please be very careful! Eventually, as it cools, you are going to want to start kneading it and playing with it.
You may want to mix in another 1/2 tablespoon of cornstarch to thicken a little more. The more cornstarch you add, the stiffer it will get and be more like a putty!
The cornstarch will help the marshmallow thicken and form a slime like substance. Time to play with your marshmallow slime! How much of a stretch can you get?
What happens when you heat a marshmallow?
This edible slime recipe even has a little science to it because of the marshmallows! Have you ever noticed what happens when you put marshmallows in the microwave? They get big and puffy {before they burn if you let them go too long}!
When you heat up a marshmallow, you heat up the molecules in the water that is contained within the marshmallow. These molecules move farther apart. This gives us the squishiness that we are looking for to mix up your Rice Krispy squares or our marshmallow slime!
The added oil does assist in the pliability and general non drying of the material.
When you add the cornstarch, a natural thickener, you make a thick stretchy substance which is known as the great marshmallow slime! Your hands playing, kneading, stretching, and generally having fun with the slime putty keeps it going.
After a while, as the slime cools down, it’s going to harden. This is because the molecules in the water move closer together again.
So, unfortunately, this slime is not going to last all day or even overnight. Yes, we put ours in a plastic bin to see. Our traditional non-edible slime recipes do last a lot longer!
More Fun Things To Do With Marshmallows
Have leftover marshmallows? Why not try one of these fun activities!
- Make the tallest tower you can with spaghetti and marshmallows.
- Build structures with toothpicks and marshmallows.
- Make a marshmallow igloo.
- Construct a solar oven and cook some s’mores.
- Build a marshmallow catapult and fling marshmallows.
- Or of course, grab all the pink marshmallows and make strawberry marshmallow slime.
Free Printable Slime Recipe!
More Fun Edible Slime You Can Make
Check out over 12 edible slime recipes you can make! Including…
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Is there a way to make this wihout a microwave?
Hi, you could try our no-cook fluff version instead!
cool
OMG, what a great idea! Definitely need to show this to my daughter.