Start off by combining the chocolate with the nutella and set aside
Add your whipped cream to a large mixing bowl and whip it to stiff peaks using either a hand whisk or an electric whisk. Refrigerate immediately
Add Milk, nutella, cream cheese and vanilla ice cream to a blender and blend on high speed until everything is well combined. You may see specs of cream cheese, just keep blending and they will disappear.
Dip the mouth of each serving glass into the chocolate sauce and let a little drip down the sides of the glass. Then dip it into the Oreos. Add your milk mixture to the glass and pipe the cream using a piping bag fitted with a 1M tip on the end. Drizzle with nutella and sprinkle crushed hazelnuts.
Serve immediately
Tip: If you want to make your milkshake extra chill on a hot day add a couple ice cubes in with your milk ingredients.