My usual apple crisp recipe is here, except that I generally use a third of the recommended sugar and three or four times the necessary cinnamon.
I'd like to experiment with variations on the recipe (e.g. adding flour to the filling, putting nuts in the crumble) but I don't really want to make multiple whole apple crisps, because of lack of ingredients, lack of people to eat them, etc.
I'm thinking about making multiple mini-crisps in a muffin tin. This also has the advantage that they will be side by side for easy comparison. But I'm not sure how (if at all) to adjust the baking time. Help?