Caramelised Apple Crumble

Brought an Apple Crumble home last night.  The perfect warming pud for a winter's night.  Leave it in the oven long enough so that you can see the butter bubbling away on the topping.  Then the crumble starts to caramelise, and becomes beautifully chewy - a perfect complement to the soft, warm apple underneath  Add Creme Anglaise, or keep it simple with custard or Pure Vanilla ice cream.  Heaven on a plate.  (But not for long!)