01 -
Set oven temperature to 350°F and allow to preheat for even baking.
02 -
Grease a 9 by 5 inch loaf pan with butter or cooking spray, or line it with parchment paper.
03 -
Use a fork to mash bananas in a large bowl until very smooth.
04 -
Add granulated sugar, eggs, vegetable oil, and vanilla extract to the mashed bananas. Whisk thoroughly until fully blended.
05 -
In a separate bowl, whisk together all-purpose flour, baking powder, baking soda, salt, and ground cinnamon.
06 -
Gradually mix the dry ingredients into the wet mixture, stirring gently with a spatula until just combined. Do not overmix.
07 -
Carefully fold in diced strawberries, ensuring they are evenly incorporated throughout the batter.
08 -
Pour batter into the prepared loaf pan. Smooth the surface and bake for 60 minutes, or until a toothpick inserted in the center comes out clean.