Take a standard sized regular cocktail glass and put it inside the freezer atleast an hour before the cocktail is to be served.
In a cocktail shaker, put some ice cubes. To have better results crush the ice cubes so they chill the drink quickly and add to the taste.
After that pour all the ingredients in the cocktail shaker i.e. 90ml Vodka, 30 ml Dry vermouth and thoroughly shake it. Use a stirrer to ensure that the crushed ice is properly dissolved in the mixture.
Bring the cocktail glass out of the freezer and carefully strain all the ingredients in it. For decoration, add a twist of lemon zest.
Your cocktail is now ready to be served. Make sure you do not waste any time for serving once you have added lemon zest into the cocktail as the taste might change.