IBA official recipe includes:
Components
60 ml – Gin
10 ml – Dry Vermouth
Preparation
Pour all ingredients into mixing glass with ice cubes. Stir well. Strain into chilled martini cocktail glass.
* Notes – Squeeze oil from lemon peel onto the drink, or garnish with green olives if requested.
Enjoy ! ADB
A dry martini is made with little to no vermouth. Ordering a martini “extra dry” will result in even less or no vermouth added.