Posted: 15/10/2015 at 12:03
Just put the sliced apples and blackberries in a pan with a very little water and sugar to taste and simmer gently until beginning to soften. Put into the dish and allow to cool. Top with the crumble mix, cover with foil, clingfilm and freeze.
When you have your oven working remove the dish from the freezer, allow it to come to room temperature then cook as normal.