Welcome to Ali via here. Thanks for your address Julia, I will post it as soon as possible. Not much to read but some nice pictures and ideas!
I decided to make this mix from here, which is dry and can be stored in your cupboard:
I melted the required tablespoons of butter (2 tablespoons per 3/4 of a cupful) to make us 4 small crumbles. In the bottom are 5 or 6 very large blackberries, 1 small apple and 1 small pear:
Each dish had 1 tablespoon of our own damson brandy spooned over the fruit. I used 1 1/2 cupfuls of dry mix, so 4 tablespoons of butter were mixed in and sprinkled on top:
Once baked they looked like this:
We had the first 2 with custard and the last 2 with evaporated milk. The crumble stayed a little dry and seperate but was fine if you don't have too sweet a tooth. It might have been that I didn't fully incorporate the butter. However, it tasted nice.