jackandmopsy2nd Oct, 2012 5PS. Left out the vanilla, used the whole packet of biscuits (24?)and doubled up on the butter to make a more substantial base. And dusted with icing sugar before serving which masked any cracks. Also put virtually the whole lot of fruit in the mix and just reserved a few big 'uns for the top. I grow yellow as well as red raspberries but this didn't affect the look.