1. Preheat oven to 375f.
2. Lightly grease 12 muffin pan cups (or 8 mini loaf pans like I used).
3. In a large bowl, mix together first 4 (dry) ingredients.
4. In another bowl, beat together the bananas and remaining 6 ingredients.
5. Stir the banana mixture into the flour mixture until combined.
6. Spoon batter into prepared muffin cups.
7. In a small bowl, mix together brown sugar, 2 tablespoons flour and cinnamon.
8. Cut in 1 tablespoon butter until mixture resembles coarse cornmeal (you can use a fork or your fingers to lightly combine to create the crumbly mixture).
9. Sprinkle topping over muffins.
10. Bake in preheated oven for 18 to 20 minutes for muffins or 20-25 minutes for 8 mini loaves, until a toothpick inserted into center of a muffin comes out clean.