Add the milk, cream, cocoa powder and vanilla in a pan and stir over a medium heat
In a bowl whisk together the sugar and egg yolks,
pour some of the hot liquid over the egg mixture while whisking constantly then pour back into the pan and continue to whisk.
Add 100g of chocolate and the salt and keep whisking until the mixture thickens a little like custard and coats the back of the spoon
Add the amaretto and taste, add more salt or amaretto if you like
Cover with some plastic wrap placed touching the surface of the custard and chill over night in the fridge, or use the pre chill function on the ice cream machine
Churn in an ice cream machine, and add in the 80g chopped chunks of chocolate
line a loaf tin with plastic wrap and pour in, try and shape like a sausage. (you can let it firm up for a bit to make it easier.