Make homemade butter in minutes with this amazing and simple science activity. Great for home or the classroom, or even as a party trick to blow your guests’ minds!
Grab a jar and some whipping cream. I’m going to show you how to make homemade butter with your kids today. The process is really fun and easy and it will fascinate all ages!
Nothing is better than homemade butter! Whether you slather it on some toast or a muffin or a dinner roll, you just can’t beat the taste of butter you’ve made yourself.
Making your own butter couldn’t be easier! In fact, it’s so easy, that making homemade butter is one of those classic science activities that teachers do in the classroom with their students. All you require is a carton of cream and a glass jar!
Oh, and a little elbow grease. That’s the fun part. You’re going to shake, shake, shake your way to your batch of tasty homemade butter, and that does require a bit of muscle.
You can do it though! Heck, even my preschoolers can handle this experiment! Have a look:

For your convenience, this post contains affiliate links.
What you’ll need to make homemade butter:

- a glass jar with a lid
- heavy cream (35% whipping cream)
- 2 or 3 glass marbles (OPTIONAL)
Please note that the marbles are optional. I do not use them, but others say it speeds up the process. If you’re using a jar, be sure to use thick, tempered glass like a Mason jar.
How to make butter in 3 easy steps – FILL, SHAKE, RINSE:
- Fill your jar half way with cream.
- If you’re using marbles to speed up the process, drop them in now.
- Put the lid on tightly and SHAKE it like crazy!

Quite quickly, the liquid will thicken, and you won’t hear liquid sloshing around anymore. That’s supposed to happen. You can read the scientific explanation for what’s happening to your cream here.
Keep shaking! About halfway through, I took the lid off with my preschoolers and discovered whipped cream! And yes, we grabbed a spoon, and dipped in!
Pop the lid back on, and keep shaking. After a few more minutes, we heard liquid sloshing around in the jar again. I thought something had gone wrong, and worried that our thickened mixture had thinned back into cream.
Not to fret! A peak inside revealed that the sloshing we heard was the buttermilk separating from the butter that was forming in the jar.
Almost ready!

Once again, pop the lid back on, and shake it for another minute or so, until that butter is a solid mass.

Woohoo! We have BUTTER!
Pour off that buttermilk, and shake or scoop the butter out of the jar.
Be sure to save your buttermilk for baking.

To finish, you need to rinse your butter under cold water. Knead it a little as you rinse. This will remove the last of the buttermilk and will prevent your butter from going rancid quickly.
Now it’s time for a taste-test!
We slathered our light and fluffy homemade butter on toast.
Mmmmm!
It’s out of this world!

If you like, you can add a dash of salt, or you can turn your butter into flavoured butter by adding a bit of citrus zest or finely chopped thyme or basil.
If you really want to impress your family, bake some bread machine dinner rolls to spread your butter on.
Storing homemade butter:
Homemade butter won’t keep for long because there are no preservatives in it. It will spoil quickly if left at room temperature, but will keep well for a few days in the fridge.
An even easier way to make butter:
Check out this butter shaker! (affiliate) You can make your butter in 3 minutes flat with this baby!

- 35 % m.f. cream also known as heavy cream or whipping cream
- jar with a lid
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Fill your jar half-way with cream.
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Pop the lid on, and start shaking.
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When the sloshing sounds stop, remove the lid, and check for whipped cream!
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Pop the lid back on, and continue to shake until the mixture separates into buttermilk and butter.
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Remove lump of butter (save the buttermilk for baking).
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Rinse butter under cold water, kneading any buttermilk out of the butter.
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Stir in a dash of salt if you wish.
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Your butter won't keep for long because there are no preservatives. If you're not eating all of it the first day, store in the fridge for another day or two.
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Store in the fridge if keeping for more than one day.
More cool science activities for you to enjoy with your kids:
20 Easy Science Activities for Kids
3-Ingredient Concoctions for Kids
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