Step 1

Thoroughly grease a 10-inch bundt pan and preheat oven to 350 degrees F.

Step 2

In a medium-sized bowl, sift together flour, baking powder, baking soda, salt, and cinnamon. Set aside.

Step 3

In a large bowl combine brown sugar, and butter. Stir until evenly combined, then add eggs one at a time.

Step 4

Add vanilla and mashed bananas to the wet ingredients and mix until smooth.

Step 5

Slowly mix the dry ingredients into the wet until just combined. Add walnuts if using.

Step 6

Transfer batter to the prepared bundt and bake for 60-70 minutes, or until an inserted toothpick comes out clean.

Step 7

Allow cake to cool for 15 minutes, then invert onto a serving plate.

Step 8

Glaze: Add all glaze ingredients to a small saucepan over medium heat. Bring to a gentle boil and cook for 2 minutes. Allow glaze to cool for about 5 minutes then drizzle over the cooled cake.