Becherovka is an amaro made in the Czech Republic since 1807. It is clear, 76 proof, and flavored with anise and cinnamon, along with more than thirty other herbs and spices. The recipe is known to only two people, who make the blend of herbs every week.
Becherovka is meant to be served chilled and neat as a digestif. It is popularly served in the Czech Republic mixed with tonic water, a combination called a beton (from BEcherovka and TONic), which is also a pun for the Czech word for concrete.