Pour 1 quart of heavy whipping cream in 2 glass jars, cover them tightly and have your children shake them vigorously for 15 minutes. :-)
In about 10 minutes you'll have whipped cream.
Keep shaking until you see the butter and buttermilk on the side of the jar.
You now have 2 cups of butter
and 2 1/2 cups of buttermilk.


