In a blender, add 200 ml of chilled milk, 4 KitKat fingers (broken into pieces), 2 scoops of chocolate ice cream, and 2 tablespoons of chocolate syrup. Blend until smooth and creamy.
Pour the shake into a tall glass, leaving some space at the top.
Top the shake with a dollop of whipped cream and garnish with crushed KitKat pieces and a drizzle of chocolate syrup.
Serve immediately with a straw and enjoy your KitKat Shake.