Drizzle the inside of a glass with chocolate sauce. Set aside.
Place caramel vodka, chocolate liqueur, coffee liqueur, milk, ice cream and bitters in a cocktail shaker with 3-4 ice cubes.
Cover and shake vigorously for 10-15 seconds. (You want to break down the ice cream so it mixes into your cocktail.)
Strain into a coupe or martini glass.
Garnish with a sprinkle of cocoa powder!