Helen’s crumble topping recipe:  adapted from Lady Lucy Pelham.

Topping for prepared fruit:

Cream together 4 oz (115g) butter and 6oz (170g) sugar.

Fork in 4oz (115g) plain flour and spread the now lumpy mixture on a tray and put in fridge to dry until needed. 

Place pre-cooked fruit in a greased shallow dish, cover with the crumble mix and sprinkle with demerara sugar. 

Bake for approx. 30 minutes at 180 C

Suggested Variants:

Add to or replace some of the flour with any of the following:

semolina,  oatbran,  coconut,  ground almonds, nuts. 

Also spices, can be added,  eg: cinnamon, ginger.