ButterYou can buy butter at the store, but it's more fun to make ourselves!

What You Need

  • Heavy cream
  • Jar with a lid
  • A snack to put the butter on


What You Do

  1. All you do is put some heavy cream into a jar with a lid. Add a CLEAN marble in with the butter in the jar to make it go faster.
  2. Screw the lid on tight and begin to shake it.
  3. Keep shaking the cream back and forth until it thickens. In about 10 minutes, it will turn to butter.
  4. The glob is butter! The liquid that’s leftover is buttermilk.


The project above was part of the Cookin' Up Science program.