Preheat the oven to 350°F. Grease a 8x4 inch loaf pan.
In a bowl, mash bananas well. Whisk in eggs, oil and vanilla.
In another bowl, whisk together flour, brown sugar, baking soda, salt and cinnamon.
Add dry ingredients to wet and stir just until combined. Fold in raisins.
Pour into the prepared pan. Bake for 55-60 minutes until browned and the toothpick inserted in the center comes out clean.
Allow bread to cool completely before slicing. Enjoy!