I love these muffins. I used banana instead of apple (since I had so many). I used 3 bananas, which comes out to about 1/4 per muffin, but if I were to make it again, I would probably use twice that. So that in every muffin you are getting almost 3/4 of an egg, and half a banana. I also doubled the cinnamon and put nutmeg and ginger in there too!