Want perfectly spreadable butter for your toast? Then look no further! The butter bell, also known as a butter crock or french butter keeper, or "beurrier Breton" is a two-piece ceramic jar that keeps butter fresh on the counter for about 30 days. The butter goes in the “bell,” which you place in the water-filled crock.  The water creates a seal that keeps the butter fresh and clean. This device keeps butter smooth and spreadable for whenever you need it.
 
Fits one stick of butter.