use a Ziplock bag to break the biscuits into crumbs

mix the sugar, butter, cocoa, vanilla, and milk together until the mixture becomes soft and creamy

add the biscuit crumbs to the mixture and mix well

use a cupcake pan or any square shaped pan or even foil / Ziplock bags to shape the mixure

put in the freezer for 3 to 4 hours

then use a knife to cut into even squares then enjoy