Banana Pecan Muffins

1: Mash the bananas and mix in the white sugar and brown sugar well.

2: Add in the egg and vanilla extract, then mix.

3: Pour in the melted butter and mix well.

4: In another bowl, whisk together the all-purpose flour, baking soda, cinnamon, instant espresso powder, and salt.

5: Add the dry ingredients into the wet ingredients and fold gently until almost combined.

6: Fold in the chopped pecans gently.

7: For the topping, combine the packed brown sugar, all-purpose flour, and butter, and mix well.

8: Add in the oats and chopped pecans, and mix.

9: Add the topping on top of the muffin batter.

10: Bake in a preheated oven at 350°F for 20-25 minutes.