Martini & Rossi product, familiarly

I believe the answer is:

asti

(Other definitions for asti that I've seen before include "- spumante, It. wine" , "Source of fizz" , "Piedmontese white wine" , "Italian town, famous for its wine" , "Piedmont wine city, SE of Turin" .)

I've seen this clue in The New York Times.

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