Low Sugar Banana Walnut Muffins | Sweet Smart

Ingredients

• 1 1/2 cups whole wheat flour
• 1 teaspoon baking soda
• 1/4 teaspoon salt
• 1 teaspoon ground cinnamon
• 3 ripe bananas
• 1 egg
• 1/4 cup (1/2 stick) butter, melted and cooled
• 1 teaspoon vanilla extract
• 1 cup chopped walnuts