To reiterate, a martini is gin and vermouth.

More:

My Favorite Version (also called the Crisp Cocktail):

• 1 ½ oz. Tanqueray 10 Gin
• 1 ½ oz. Dolin Dry Vermouth
• 1 dash Orange Bitters

Combine ingredients in pre-chilled mixing glass. Add ice--lots of it. Stir gently but with purpose. Thirty strokes, taste. Continue until diluted sufficiently that the drink is still pungent and oily. Strain in to chilled cocktail glass. Cut a 1 ¼" circle from an orange rind. Spray zest on top of Martini and discard. Add lemon twist.

I like a martini the traditional way with an olive. Makes me feel so sophisticated and la-de-da when I have one. Which is very seldom.

I've never liked the taste of gin.