60ml (¼ cup)milk (optional - omit for a thicker shake)
chocolate sauce and whipped cream for topping
Place all of the ingredients except the chocolate sauce and whipped cream in a blender. Blitz until smooth.
Drizzle the inside of a glass with chocolate sauce and pour in your milkshake. Top with whipped cream (either homemade or from a can is fine) and a sprinkling of cocoa powder or a drizzle of chocolate sauce. Enjoy!