From Simon Hopkinson’s The Vegetarian Option
To make 4 crumbles you will need:-
3-4 teaspoons granulated sugar
1 teaspoon butter
Take 4 ramekins and divide the raspberries equally. Sprinkle with sugar and dot with butter.
100g plain flour
40g caster sugar
Mix together until you get a sandy mixture. Spoon over the top of the raspberries but do not press down. Then bake in the oven at 180C for 25 minutes or so until browned and bubbling.