Apple Crisp/Crumble [Cooking]

2008 Feb 19

I'm looking to make an apple/blueberry or apple/cranberry crisp or crumble. There are so many different recipes for the topping and i'm not sure which is the best. What's a good ratio for the butter/flour/oats/sugar and cinnamon?

2008 Feb 19
I don't know a good ratio since I've never stuck to one recipe, but I do like adding fresh walnut or pecan pieces to the crumble mixture.