Sourdough Banana Bread

Ingredients (14)

• 1 very large (about 140 grams, 5 ounces) ripe banana
• 130 grams (4 1/2 ounces) sugar
• 140 grams (5 ounces) discard sourdough starter, cold
• 30 grams (2 tablespoons) olive oil
• 20 grams (1 1/2 tablespoons) unsalted butter, melted
• 1 3/4 teaspoons blackstrap molasses
• 1 large egg
• 1/8 teaspoon vanilla extract
• 1/2 teaspoon ground cinnamon
• 75 grams (2 3/4 ounces) bread flour
• 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 60 grams (2 ounces) walnut pieces