Yes, but you probably won't need to sweeten it. Sorry I didn't say, I'd add some sugar to the Bramleys, but if it's mostly eating apples and blackberries then it's probably sweet enough. It depends really how much you want - if it's just a dessert/treat for you and DS then you might want to keep it small anyway. Also depends what size of dish(es) you want to put it in!
I'm not helping here am I
If you just wanted to do 2 ramekin dishes, then 2oz flour would probably do it.