Good-Cooking - Light Banana Coconut Cake

Ingredients

• 1 3/4 cups all-purpose flour
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1/3 cup granulated sugar
• 1 1/4 teaspoons cream of tartar
• 3/4 cup mashed banana
• 1/4 cup egg substitute
• 1/4 cup skim milk
• 1/4 cup margarine, melted
• 1 teaspoon vanilla extract
• 1 tablespoon coconut flakes
• 1/4 teaspoon ground cinnamon
• Vegetable cooking spray