When you hear about butter slime does it make you think of slime made from a stick of butter? That would be something, wouldn’t it! Given all of the edible and unique slime recipes out there, I totally get it! However, our easy to make butter slime recipe doesn’t use butter or the traditional soft clay either. Try this fun slime recipe today for a really cool textured slime!


Butter slime


Why is butter slime named butter slime? Honestly, I don’t have an official answer just my thoughts.

Butter slime feels soft and silky. It’s firmer but still smooth and stretchy. Of course, butter isn’t stretchy! However, this slime keeps more of a shape and you can add play dough tools to it or even a butter knife and make chunks.

butter slime

Of course, this pale yellow colored slime also resembles a rich yummy stick of butter. Just no tasting allowed. Now you could also make real butter for a cool science activity. That would be tasty!

More fun with butter slime! Also check out our traditional clay slime recipe!


We always like to include a bit of homemade slime science around here!  Slime is an excellent chemistry demonstration and kids love it too!   

Mixtures, substances, polymers, cross-linking, states of matter, elasticity, and viscosity are just a few of the science concepts that can be explored with homemade slime!

How do you make slime?  It is the borate ions in the slime activator (sodium borate, borax powder, or boric acid) that mix with the PVA (polyvinyl acetate) glue and forms this cool stretchy substance. This is called cross-linking!

The glue is a polymer and is made up of long, repeating, and identical strands or molecules. These molecules with flow past one another keeping the glue in a liquid state. Until…

You add the borate ions to the mixture, and it then starts to connect these long strands together. They begin to tangle and mix until the substance is less like the liquid you started with and thicker and rubbery like slime! Slime is a polymer.

Picture the difference between wet spaghetti and leftover spaghetti the next day. As the slime forms, the tangled molecule strands are much like the clump of spaghetti!

Is slime a liquid or solid?

Slime is called a Non-Newtonian fluid because it’s a little bit of both!  Experiment with making the slime more or less viscous with varying amounts of foam beads. Can you change the density?

Did you know that slime aligns with the Next Generation Science Standards (NGSS)? 

It does and you can use slime making to explore states of matter and its interactions. Find out more below…


I get a lot of questions regarding how I store my slime. We use reusable containers in either plastic or glass. Make sure to keep your slime clean and it will last for several weeks. I love the deli-style containers I have listed in my recommended slime supplies list.

If you want to send kids home with a bit of slime from a camp, party, or classroom project, I would suggest packages of reusable containers from the dollar store or grocery store or even Amazon. For large groups, we have used condiment containers and labels as seen here.

We have the best resources to look through before, during, and after making your butter slime! Make sure to go back and read the slime science above too!

No more having to print out a WHOLE blog post for just one recipe!

Get our basic slime recipes in an easy to print format so you can knock out the activities!



Want to get the smooth buttery texture of butter slime without clay? The secret ingredient is cornstarch!

You can use any of our basic slime recipes to make butter slime, but here we use our liquid starch slime recipe. You could also use our saline solution slime recipe or borax slime recipe!


  • 1/2 Cup of Washable PVA White Glue 
  • 1/4-1/2 Cup of Liquid Starch
  • 1/2 Cup of Water
  • 3 tbsps Corn Starch
  • Yellow Food Coloring
  • Bowl, Spoon, Measuring Cups
  • Play Kitchen or Play Dough tools (optional)


STEP 1:  In a bowl add 1/2 cup water and 1/2 cup glue and mix well to combine completely.

STEP 2: Now’s the time to add yellow food coloring and cornstarch. Mix well.

Butter slime without clay - add cornstarch

STEP 3: Pour in 1/4 cup of liquid starch and stir well.

You will see the slime immediately start to form and pull away from the sides of the bowl. Keep stirring until you have a gooey blob of slime. The liquid should be gone! 

STEP 4:  Start kneading your slime! It will appear stringy at first but just work it around with your hands and you will notice the consistency change.

SLIME MAKING TIP:   The trick with liquid starch slime is to put a few drops of the liquid starch onto your hands before picking up the slime. However, keep in mind that although adding more liquid starch reduces the stickiness, and it will eventually create a stiffer slime.

soft, thick butter slime recipe that uses cornstarch
easy to make butter slime science and sensory play for kids


Remember to keep cornstarch on hand! Cornstarch is always one of the supplies packed into our homemade science kits!  It’s a terrific ingredient for cool kitchen science activities and is great to have on hand to whip up an easy science experiment!

Some of our favorite cornstarch recipes…


Try more fun slime recipes right here. Click on the link or on the image below.

liquid starch slime homemade recipes