This dessert is a fabulous way to use up stale or broken biscuits. They make the most delicious topping for tart, tangy rhubarb.
*Variations are numerous. Use other fruits, like sliced apples or mixed berries, different nuts, or alternative biscuits like gingernuts. *If the biscuits are soft, crisp them up in a hot oven for 5 minutes before turning into crumbs.