Martini

Chill martini glass with soda water and ice. Fill mixing glass to top with ice. Add the dry vermouth to the mixing glass, giving a small stir to coat the ice with the vermouth. Drain out glass, leaving just the coating on the ice. Add the gin to the mixing glass. Stir for 15 seconds, always making sure that the glass is full to the brim with ice. Taste. Fine strain into chilled martini glass. Zest with lemon peel and add twist unto drink.

Social and Cocktail says:

Regarded by many as the greatest of all cocktails, the Martini is also one of our top choices at Social and Cocktail HQ. We prefer to use Bombay Sapphire and only a little vermouth.