Beat together the butter and sugar until light and fluffy.
Add in the vanilla, flour and salt and beat again!
Add in the milk and finely chopped chocolate and beat until a cookie dough is formed.
Chill the cookie dough for 10 minutes in the fridge!
Once chilled, ball the cookie dough up into bitesize pieces, or smaller, or larger.. and then put in the fridge again for 20 minutes or so.
For the Fudge
Line a 7x10" brownie tin with parchment paper.
Add your chocolate and condensed milk to a large pan, and heat on a low heat. Stir frequently so that the chocolate doesn't catch and burn.
Alternatively, do this in the microwave in short bursts!
Once melted, add in your vanilla.
Drop in 90% of your cookie dough balls and chopped cookies and quickly fold through.
Pour into your tin - sprinkle on the rest of the cookie dough and cookies!
Set in the fridge till solid - the cookie dough will stay softer, but the fudge itself should firm up nicely.
Notes
This recipe is a no-bake recipe, but if you would prefer to bake the flour before using (As mentioned in the post) put the flour on a baking tray and bake for 5 minutes or so at 180C. Leave to cool fully before making the cookie dough!