Preheat oven to 350°. Combine bananas, eggs, oil, yogurt, and vanilla in a large mixing bowl. Mix until combined and bananas are broken into small pieces (you can pre-mash them if you want but that’s one extra step that I don’t want to do so why not let the mixer do it for me?). Add all the dry ingredients to the wet ingredients. Mix until combined but don’t mix too much or your muffins will be tough. Pour into a greased muffin tin and bake for 20-25 minutes until muffins are golden brown and toothpick inserted into center of muffin comes out clean. Allow to cool. This can also be made into one large loaf of bread. Just pour into a loaf pan and bake for approximately 55-60 minutes until a toothpick inserted into the middle comes out clean.