01 -
Preheat the oven to 350°F. Grease an 8- or 9-inch loaf pan with nonstick spray and line the bottom with parchment paper.
02 -
In a large bowl, whisk together eggs, mashed bananas, melted butter, brown sugar, and vanilla until smooth. Stir in sour cream.
03 -
In a medium bowl, whisk together flour, baking soda, salt, and cinnamon until evenly blended.
04 -
Gradually add the dry mixture to the wet mixture, stirring just until the flour is fully incorporated. Scrape the bottom of the bowl to ensure even mixing.
05 -
Transfer the batter into the prepared pan and smooth the surface. Bake for 55 to 65 minutes or until a toothpick inserted in the center comes out clean.
06 -
Cool the bread in the pan for 20 minutes. Run a paring knife around the edges, then transfer the loaf to a wire rack to cool completely. Remove parchment before slicing.