By drizzling chocolate syrup into a frosted martini glass, this recipe will create a delicious milkshake and martini fusion. Shake and strain the chocolate vodka, crème peanut rum, and chocolate liqueur soon after you take the glasses out of the freezer to make sure your drinks stay cold.
Drizzle chocolate syrup into the bottom of a martini glass. Place the glass into the refrigerator until ready to use. Add all ingredients into a shaker with ice. Shake and strain into the chilled martini glass. Garnish with a peanut butter cup.