* The streusel crumb topping makes a lot! Half the recipe if you don't want leftover streusel. I always make the full amount so that I can skip this step when I make future crumb muffins or crisps. Really come in handy
*Store muffins in an airtight container. Banana bread naturally gets a moist and sticky surface as it sits. If you are serving this for an event and want the topping to remaining crunchy, I'd suggest making this the day of.