Step 1: Preheat and Prepare
Preheat oven to 350°F (175°C). Grease and line a 9x5 loaf pan with parchment paper.
Step 2: Mix Dry Ingredients
In a large bowl, whisk together flour, baking powder, baking soda, salt, and cinnamon.
Step 3: Combine Wet Ingredients
In another bowl, mash bananas and mix in granulated sugar, brown sugar, eggs, sour cream, melted butter, and vanilla until smooth.
Step 4: Blend Wet and Dry Ingredients
Gradually add the dry mixture to the wet mixture. Stir until just combined. Avoid overmixing.
Step 5: Bake
Pour the batter into the prepared loaf pan. Bake for 50 minutes or until a toothpick inserted in the center comes out clean.
Step 6: Prepare Mocha Topping
In a small saucepan, mix powdered sugar, brewed coffee, cocoa powder, melted butter, and a pinch of salt until smooth.
Step 7: Drizzle and Cool
Once the bread has cooled, drizzle the mocha glaze over the top. Allow it to set before slicing.