What is 'dry vermouth' primarily made from?

Dry vermouth is primarily made from white wine and a blend of various botanicals, including herbs and spices. The process of creating vermouth involves fortifying the white wine with distilled alcohol and infusing it with these botanicals, which contribute to its distinct flavor profile. The use of white wine as the base is crucial as it provides the light, crisp characteristics associated with dry vermouth, making it a popular choice in cocktails like the classic Martini.

The other options do not accurately describe the primary ingredients of dry vermouth. Red wine, grain alcohol, fruits, rye whiskey, and sugar are not the main components in the production of dry vermouth, emphasizing the unique composition that sets it apart from other fortified wines. Ultimately, the combination of white wine and herbs defines the essence of dry vermouth, making it essential for various cocktails and enhancing the overall bartending experience.