Mum's Apple Crisp

My mom made this often while I was growing up. I make it often too. Everyone really likes it. A few years ago, I lost my copy of her recipe and started to have to call her every time I wanted to make it. I'd call her and scribble it on a scrap of paper and lose the paper. Every time I'd promise to write it down properly and keep it with my recipes and every time I'd lose it again. I called her again tonight and scribbled it on a piece of paper. Tonight, I'm finally going to make good on my promise and I'm writing it down properly. Well.. I'm typing it and sharing it with all of you!! Don't be surprised if one day, if my internet is out, I give you a call to ask for the recipe!!