Melt chocolate in a microwave safe bowl for few seconds until smooth paste.
crack the puris from top & dip in the melted chocolate paste.
sprinkle silver ball on top n let it chill in the refrigerator until chocolate sets & its firm
combine the Nutella & milk with a hand blender to make milkshake
divide milkshake into shot glasses
add sum chocolate syrup on sides .
pour the milkshake in the chocolate puri & serve immediately.