Step 1: Preheat and Prepare
Preheat oven to 350°F (175°C). Grease and line a 9x5 loaf pan with parchment paper.
Step 2: Caramelize the Bananas
Heat a non-stick skillet over medium heat. Melt 2 tablespoons of butter and stir in 2 tablespoons of sugar.
Add banana slices and cook for 3-4 minutes per side until caramelized. Set aside to cool.
Step 3: Mix Dry Ingredients
In a large bowl, whisk together flour, baking powder, baking soda, salt, and cinnamon.
Step 4: Combine Wet Ingredients
In another bowl, beat granulated sugar, brown sugar, eggs, sour cream, melted butter, and vanilla until smooth.
Step 5: Blend Wet and Dry Mixtures
Gradually add the dry mixture to the wet mixture. Stir until just combined.
Step 6: Fold in Caramelized Bananas
Gently fold the caramelized bananas into the batter without overmixing.
Step 7: Bake
Pour the batter into the prepared loaf pan. Bake for 55 minutes or until a toothpick comes out clean.
Step 8: Prepare Espresso Glaze
In a small saucepan, whisk together powdered sugar, brewed espresso, melted butter, and a pinch of salt until smooth.
Step 9: Drizzle and Serve
Once the bread has cooled, drizzle the espresso glaze over the top. Let it set before slicing.