Banana Crumb Muffins

1-1/2 cup all purpose flour
1 tsp baking soda
1 tsp baking powder
½ tsp salt
3 lrg ripe bananas, mashed
¾ cup white sugar
1 egg, lightly beaten
1/3 cup butter, melted
Topping:
1/3 cup packed brown sugar
1 tbsp all-purpose flour
1/8 tsp ground cinnamon
1 tbsp cold butter

In large bowl, combine dry ingredients. In another bowl combine bananas, sugar, egg and butter; mix well. Stir into dry ingredients just until moistened. Fill greased or paper-lined muffin cups ¾ full.

For Topping: Combine brown sugar, flour and cinnamon; cut into butter until crumbly. Sprinkle over muffins.

Bake 18 to 20 minutes at 375 degrees or until muffins test done. Cool in pan 10 minutes before removing to a wire rack.