In a blender jar add cold milk, chopped bananas, soft de-seeded dates (soak in hot water for 5-10 mins if required), sugar and dry fruits. Blend until smooth and thick. Add chocolate syrup and whisk again.
To serve drizzle chocolate syrup around the edges of the glass to serve. Pour the milkshake and drizzle chocolate syrup on top and top with dry fruits or chocolate chips.