1 oz. rye whiskey
1 oz. dry vermouth
1/2 oz. blackberry-flavored brandy
1/2 oz. fresh lemon juice

Stir vigorously with ice, then strain into a pre-chilled Nick and Nora glass.  Garnish with a lemon twist or a fresh blackberry (or both).  Sip in the warm June twilight, perhaps while listening to something pleasant on the gramophone.  As always, please drink responsibly.  For those wishing to have a non-alcoholic beverage, simply replace the first three ingredients with some water and a little sugar. A tip of the hat to Martha Helmreich, cocktail muse.