This was a good recipe that I will make again. The four star rating is because the cooking time was sooo far off for me. Next time, I will check the muffins at 18 minutes. I always have bananas that are threatening to go bad and combining them with raspberries is a great idea. I filled the muffin cups three quarters full and ended up with 20 muffins. I will up the raspberries to 2 cups and do half of the butter and half applesauce. I bet blueberries or cranberries would be good substitutions if raspberries weren't available. Thanks for posting.
I was wary of this combination, but luckily my boyfriend convinced me to make these anyway. the combination of raspberries and bananas is delightful. i really liked the streusel topping too! this recipe deserves more than 5 stars. thanks for posting.