Banana Nut Muffins

Details

Ingredients

• 1 ½ cups all-purpose flour
• 1 ½ teaspoons baking powder
• ¼ teaspoon baking soda
• ⅛ teaspoon salt
• 2 egg whites
• 1 cup mashed bananas
• ¾ cup white sugar
• 3 tablespoons vegetable oil
• 1 teaspoon lemon zest
• ¼ cup chopped walnuts