Line the bottom and sides of a round cake tin with baking paper (if you don’t know how to line cake tins with baking paper, watch our video: How to Prepare Cake Tins/Cake Pans
) and throw 2/3 of the biscuit mix in. Spread the mix evenly around. Now cut a circle out of the baking paper (roughly the size of your cake tin) and place it over the biscuit crumbs. Using both hands press down, hard. Keep pressing until you create an even base. Now discard the baking paper. Add biscuit crumbs along the cake tin sides and using a spoon, create a “wall”.