\u00a9 2020 wikiHow, Inc. All rights reserved. blender or food processor blend chocolate ice cream and milk until smooth. You may wish to replace some of the milk to avoid thinning the milkshake. Pour into glass and serve. Put all the ingredients in the canister of a blender. Load the back of a teaspoon with a little of the chocolate spread and spread it in a long line from â¦ I actually added Nutella and a tbsp of cocoa powder to the shake and it really satisfied my sweet, "I actually knew nothing about how to make a chocolate milkshake but all of the ingredients and steps helped me a, "As a kid, I wanted to make this for Mum on Mother's day- it turned out great!