01 -
Preheat your oven to 375°F (190°C). Line a muffin tin with paper liners or grease with butter.
02 -
In a large bowl, whisk together the flour, baking soda, and salt.
03 -
In another bowl, mix the mashed bananas, sugar, egg, and melted butter until well combined.
04 -
Pour the wet ingredients into the dry ingredients. Stir until just combined. Fold in the chocolate chips.
05 -
In a small bowl, mix together brown sugar, flour, and cinnamon. Cut in the butter until the mixture resembles coarse crumbs.
06 -
Fill the prepared muffin cups ¾ full with the batter. Sprinkle the streusel topping evenly over each muffin.
07 -
Bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
08 -
Allow the muffins to cool in the pan for 5 minutes, then transfer to a wire rack to cool completely.