Regeneron is a cocktail that was created by a bar manager in San Francisco. It contains bourbon, dry vermouth, Lillet Blanc, and Amaro Nonino.

The bourbon used in the Regeneron cocktail can be any brand that you prefer. The vermouth should be a dry variety, such as Martini & Rossi or Dolin. Lillet Blanc is a French aperitif wine that is made from a blend of white wines and liqueurs. It has a citrusy flavor and a slightly sweet taste. …