The full out war of the Custard Creams and Bourbon bickies in the British Isles If you didn't know, the Custard Creams and Bourbons were feuding biscuits and tried to gain the most popularity. Custard Creams is a Biscuit (Cookie if you're from the US) that is really two slabs of custard-flavoured biscuits stack together with a vanilla creme centre. Bourbons are the sworn enemy of the Custard Creams. They are just like their counterpart but with chocolate-flavoured biscuits with chocolate creme! You can decide who wins or loses the Biscuit war or join your favourite biscuit army! This was made for the puropse of nostalgia in Belfast and it would be nice to have this English Approved. Have fun and go to Belfast!