Ingredients:
- 1/2 cup (113g) unsalted butter, cut into cubes
- 1 3/4 cups (210g) all-purpose flour, plus more for dusting the pan
- 1 teaspoon baking soda
- 1/2 teaspoon ground cinnamon
- 1/4 teaspoon salt
- 1 cup (200g) granulated sugar
- 2 large eggs, lightly beaten
- 1 teaspoon vanilla extract
- 1/4 cup (60ml) buttermilk (or milk with 1 teaspoon lemon juice/vinegar added)
- 3 very ripe bananas, mashed (about 1 1/2 cups)
- 1/4 cup (60ml) heavy cream
- 4 ounces (115g) bittersweet chocolate, chopped
Instructions:
- Melt butter in a saucepan over medium heat, swirling occasionally. Continue cooking until the butter turns a deep amber color and smells nutty, about 5-7 minutes. Immediately transfer to a heatproof bowl and let cool slightly.
- Preheat oven to 350°F (175°C). Grease and flour the loaf pan.
- In a medium bowl, whisk together flour, baking soda, cinnamon, and salt.
- In a large bowl, whisk together sugar and cooled brown butter. Add eggs, vanilla extract, and buttermilk. Whisk until combined. Stir in mashed bananas.
- Gradually add dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix!
- Heat heavy cream in a microwave or small saucepan until simmering. Pour over chopped chocolate and let stand for 1 minute. Whisk until smooth.
- Pour half of the banana bread batter into the prepared loaf pan. Drizzle half of the chocolate swirl over the batter. Top with the remaining banana bread batter, followed by the remaining chocolate swirl. Use a knife or skewer to swirl the chocolate into the batter.
- Bake for 50-60 minutes, or until a toothpick inserted into the center comes out clean (or with a few moist crumbs).
- Let the bread cool in the pan for 10 minutes before transferring to a wire rack to cool completely.