(pen) Can't stand rhubarb. But blackberry and apple crumble, the very thought..... drools...... You're quite a gardener, then? Not I; just keep it tidy, keep the wilderness under control.

Rhubarb fool with fresh raspberries! Our rhubarb's just about pickable, but the raspberries are still resolutely green at the moment.

[INJ] Then make your pre-fool (rhubarb puree) now, freeze it until the raspberries are ripe, then add the cream to make the fool and add the fresh raspberries.

Sorry, ladies and gentlemen, crumbles are to me similar to shortbread. Should I have some medical condition which involved over salivating then each or either could be a solution. As I do not suffer from such a condition (yet) both species of those concoctions that seem to mimic the absorbent quality of some sort of surgical swab are well and truly off the menu.

[Dujon] Perhaps the crumble was too thick, and the fruit below too dry. A good crumble should not be that dry.
[Rosie] I'm also have a revulsion towards rhubarb. Also, I agree with your blackberry and apple comments - fantastic combination. I'm guessing that there's a decent chance you don't like gooseberries either?