– Rinse a martini glass with water, then place it into the freezer to chill.

– Fill a shaker with ice.

– Add the dry vermouth and cocktail onion brine to the shaker.

– Shake the shaker vigorously for about 30 seconds or until it becomes ice cold.

– Remove the lid of the shaker and add the vodka.

– Stir the mixture gently with a bar spoon for another 30 seconds.

– Strain the liquid into the chilled martini glass.

– Garnish the cocktail with a single pickled onion or skewer 3 cocktail onions with a martini pick.