Banana Chocolate Chip Crumb Cake

Ingredients

• 1 1/2 cups all-purpose flour
• 3/4 teaspoon baking soda
• 3/4 teaspoon baking powder
• 1/4 teaspoon salt
• 1/2 teaspoon ground cinnamon
• 5 Tablespoons unsalted butter
• 1/2 cup granulated sugar
• 1 large egg
• 1 teaspoon pure vanilla extract
• 1 1/2 cups mashed banana
• 1/4 cup plain yogurt
• 1/4 cup packed light brown sugar
• 3/4 cup semi-sweet chocolate chips
• 1/2 cup chopped walnuts or pecans