To make a good chocolate Bailey's martini, pour 2 ounces of Irish cream liqueur, 0.25 ounce of vodka and 0.25 ounce of chocolate liqueur into a cocktail shaker half full of ice, shake well, and strain into a martini glass. Another name for this drink is a chocolatini.
Festive garnishes add to the appeal of this basic drink. Drizzle the glass with chocolate syrup before pouring in the drink, or sprinkle the drink with chocolate shavings or curls. Up the flavor of the drink by using high quality liqueurs and vodkas. Substitute vanilla vodka, and add the seeds from one vanilla bean before shaking for an extra rich flavor.
For a thinner chocolate martini, increase the amount of vodka in relation to the amount of Irish cream liqueur up to a possible 1.5 ounces of vodka and only 0.75 ounces of the cream liqueur. For a white chocolate variation of this drink, substitute white chocolate liqueur for the chocolate liqueur. For a mocha version, add 0.25 ounces of coffee liqueur to the basic recipe. Create a sweet, creamy chocolate martini in larger quantities for parties by mixing 2 parts half-and-half, 2 parts chocolate liqueur, 1 part white chocolate liqueur, 1 part Irish cream liqueur and 1 part vodka in a pitcher or punch bowl with ice.