Tilt your martini glass at a 90 degree angle
Drizzle chocolate sauce inside of the glass, approximately 1/2" from the top as you turn the glass so that the sauce covers the entire glass
Fill a cocktail shaker 1/2 way with ice. (if you don't have a shaker, use a salad dressing glass mixer)
Measure and pour all ingredients into the cocktail shaker
Shake vigorously
Using a strainer, strain the martini into your glass, leaving the ice in the strainer, and enjoy!