Banana Chocolate Chip Crumb Cake

Bahan-bahan (10 porsi)

• 1 and 1/2 cups (188g) all-purpose flour (spooned & leveled)
• 1/2 teaspoon ground cinnamon
• 3/4 teaspoon baking soda
• 3/4 teaspoon baking powder
• 1/4 teaspoon salt
• 5 Tablespoons (71g) unsalted butter, softened to room temperature
• 1/2 cup (100g) granulated sugar
• 1 large egg
• 1 teaspoon pure vanilla extract
• 1 and 1/2 cups (345g) mashed bananas (about 4 medium or 3 large ripe bananas)
• 1/4 cup (60g) yogurt*
• 1 Tablespoon ground cinnamon
• 1/4 cup (50g) packed light or dark brown sugar
• 3/4 cup (135g) semi-sweet chocolate chips
• optional: 1/2 cup (70g) chopped pecans or walnuts