See Telegraph article here. Nice to have a reminder about this delicious pudding that you can make with the rhubarb growing in your back garden. My grandad used to grow rhubarb in the garden and it usually found its way into crumbles, and was served with custard. I used to like to play with the very large leaves, wearing them as hats. Happy days!
There are many thousands of recipes for rhubarb crumble on the internet. Best to choose one with no added salt or baking powder so as to avoid unhealthy, unnecessary sodium, and of course use unsalted butter, not margarine. If you've not made it before, be assured it is very easy to make and heavenly to eat.- Bon Appétit!