Ingredients:
- 3 large ripe bananas (approx. 375g), mashed
- 1/2 cup unsalted butter (113g), melted and cooled
- 1 cup granulated sugar (200g)
- 1 large egg, room temperature
- 1 tsp vanilla extract (5ml)
- 1/2 cup sour cream (120g)
- 1 1/2 cups all-purpose flour (190g)
- 1 tsp baking soda (5g)
- 1/2 tsp salt (3g)
- 1 cup chopped walnuts (115g)
Instructions:
- Prep the heat. Preheat your oven to 350°F (175°C). Grease your 9x5-inch loaf pan thoroughly and line the bottom with a strip of parchment paper. Note: Parchment slings make it much easier to lift the bread out later.
- Toast the crunch. Place the chopped walnuts in a small skillet over medium heat. Stir frequently for 3–5 minutes until they smell nutty and look a shade darker. Remove immediately so they don't burn.
- Cream the base. In a large mixing bowl, whisk the 1/2 cup of melted butter and 1 cup of granulated sugar together. It should look like wet sand.
- Emulsify. Add the egg and the 1 tsp of vanilla extract. Whisk vigorously for about 1 minute until the mixture looks pale and slightly thickened. Note: This step creates the structure that keeps the bread from being too oily.
- Incorporate the fruit. Stir in the 3 mashed bananas and the 1/2 cup of sour cream. Mix until the base is mostly smooth, though a few banana lumps are perfectly fine.
- Sift the dry. Sift the 1 1/2 cups of flour, 1 tsp of baking soda, and 1/2 tsp of salt directly into your wet ingredients. Note: Sifting prevents baking soda spots which taste bitter.
- The gentle fold. Use a silicone spatula to fold the flour into the wet mix. Stop when you can still see a few streaks of white flour.
- The final addition. Fold in the toasted walnuts. Continue mixing just until the flour disappears. Stop immediately to avoid overworking the gluten.
- The long bake. Pour the batter into the pan and smooth the top. Bake for 60 to 65 minutes. Check at 60 minutes by inserting a toothpick into the center; it should come out clean or with a few moist crumbs.
- Cooling phase. Let the bread sit in the pan for 10 minutes. This allows the structure to firm up. Then, run a knife around the edges and transfer it to a wire rack to cool completely.