For the loaf
01 -
3 very ripe medium bananas, mashed, about 1 1/4 cups (285 g)
02 -
1/2 cup (113 g) unsalted butter, melted and slightly cooled
03 -
3/4 cup (160 g) packed light brown sugar
04 -
1/4 cup (50 g) granulated sugar
05 -
2 large eggs, at room temperature
06 -
1 1/2 teaspoons vanilla extract
07 -
1/2 cup (120 g) sour cream or full-fat plain Greek yogurt
08 -
1 cup (120 g) all-purpose flour
09 -
1/2 cup (42 g) unsweetened cocoa powder
10 -
1 teaspoon baking soda
11 -
1/2 teaspoon fine salt
12 -
1/2 teaspoon ground cinnamon
13 -
1 cup (170 g) semi-sweet chocolate chips, divided
14 -
3/4 cup (85 g) chopped walnuts or pecans
For the pan
15 -
Butter or baking spray, for greasing
16 -
Parchment paper, for lining