Get your ice cream out of the freezer.
Put the sultanas, raisins and a splash of water into a pan on a medium heat, so they plump up for a few minutes as the water evaporates.
Meanwhile, smash up the biscuits in a pestle and mortar and divide between four bowls, adding a nice round ball of ice cream to each.
When the water’s gone, pour the rum over the sultanas and raisins and carefully set fire to it with a match, if you like (stand back!
).
Once the flames begin to subside, spoon the mixture over your ice cream balls.
Heaven.