In a blender, combine the cashews and dates with water, then blend until you achieve a smooth consistency.
Melt some chocolate and use it to create a thin layer at the bottom of a silicone pan.
Pour the cashew-date mixture over the chocolate layer in the pan.
Place the pan in the freezer and allow the mixture to solidify completely.
Melt more chocolate and spread it over the top of the frozen bars.
Cut the bars into individual servings.
