Colins Bread And Butter Pudding With Raisins

'Bread and butter pudding is one of my favourite winter puddings. My version has a rich, gooey custard laden with sherry-soaked fruit that bursts in your mouth' - Colin FassnidgeThe ingredient of Colins Bread And Butter Pudding With Raisins150g raisins250ml 1 cup pedro ximenez sherry150g unsalted butter at room temperature plus extra to grease16 slices day old