What you need to get started:
Baby food jars
Heavy whipping cream
Fill the baby food jar 1/2 way with the heavy cream and a pinch of salt.
Start to shake the jar. Get kids to do it for you...wink.
Keep shaking till a ball of butter forms. About 20-30 minutes.
Drain off the whey. Chill the butter for an hour or so.
"Look Miss! Look! It's really butter!!!"