Banana Crumb Muffins

I made a similar recipe to this one a few weeks ago. With three bananas on the verge of going bad, I decided to make them again with a few changes. The muffin itself is basically the same (I just added a bit of vanilla), but this time I made a better crumble to put on the top.

Muffins:
1½ Cups all-purpose flour
1 teaspoon baking soda
1 teaspoon baking powder
½ teaspoon salt
3 bananas, mashed
¾ Cup white sugar
1/3 cup packed dark brown sugar
1 egg, lightly beaten
1/3 Cup butter, melted
½ teaspoon vanilla

Topping:
½ Cup packed dark brown sugar
2 Tablespoons all-purpose flour
¼ teaspoon ground cinnamon
1½ tablespoon butter
1/3 Cup oatmeal
1/3 Cup finely chopped pecans

DIRECTIONS

- Preheat oven to 375 degrees F.
- In a large bowl, mix together 1½ cups flour, baking soda, baking powder and salt.
- In another bowl, beat together bananas, sugar, egg, vanilla & melted butter.
- Stir the banana mixture into the flour mixture just until moistened. Spoon batter into prepared muffin cups.
- In a small bowl, mix together brown sugar, 2 tablespoons flour, cinnamon, oats, and nuts. Cut in butter until mixture resembles coarse cornmeal. Sprinkle topping over muffins.
- Bake in preheated oven for 15 to 18 minutes, until a toothpick inserted into center of a muffin comes out clean.