Place chocolate in a fondue pot. In a small saucepan over low heat, heat cream to a low simmer, being careful not to boil. Pour cream over chocolate chips, add vanilla, and stir until chips are melted.
Serve in the fondue pot, over a low flame, with a plate of fruit, marshmallows, and cake.
Recipe Courtesy of Quick & Kosher: Meals in Minutes by Jamie Geller (Feldheim 2010)