In a medium bowl combine flour, baking soda, salt, and cinnamon and mix well.

In a separate bowl cream together sugar, vegetable oil, and eggs.

Then add the mashed banana, orange zest, and juice to the wet ingredients and mix well.

Slowly combine the wet ingredients to dry and mix until everything is well combined.

Pour into a greased bundt cake pan.

Bake at 350 for about 26-28 minutes or until toothpick comes out clean.

Let cool for about 10 minutes before flipping onto serving plate.

In a small bowl combine powdered sugar and juice of one orange (about 3 tbsps).

Mix until powdered sugar is dissolved and glaze is smooth.

Drizzle over cake and top with orange zest for garnish.