How to Churn Butter
You will need:
Plastic tupperware container
Pinch of salt
Place marbles in bottom of container.
Pour enough whipping cream to cover the marbles.
Add a pinch of salt and shake, shake, shake.
You will probably have to shake for 5 or 10 minutes. After a while, you won’t be able to hear the marbles moving anymore - KEEP SHAKING!
Keep shaking the container until there is some liquid in the container which has separated from the butter. Once this has happened, pour out the liquid and spread your home-made butter on some crackers and enjoy.