Instructions
- Chill a martini glass in the freezer or fill it with ice water while you prepare the cocktail.
- In a mixing glass, combine the dry sherry and gin or vodka over ice.
- Stir gently for about 30 seconds to chill the mixture.
- Strain the mixture into the chilled martini glass.
- Garnish with an olive or a twist of lemon. Serve immediately.