Orange-Pumpkin Mini Loaves with Cinnamon-Orange Streusel
Do not substitute margarine for butter. It will not yield the same product.
You can substitute ground cinnamon for pumpkin pie spice.
You can make the streusel in a food processor, if you don't mind the clean up for such a small job.
If you have chilled the streusel overnight, take it out while you mix the other ingredients to let it get softer.