Heart Healthy Lemon Yogurt Cookies

Ingredients

• 1 1/2 cups all-purpose flour
• 1 cup whole wheat flour
• 1/2 tsp baking soda
• 1 tsp baking powder
• 1 tsp salt
• 3/4 cup granulated sugar
• 1/2 cup low fat lemon yogurt
• 1 large egg, lightly beaten
• 2 egg whites, lightly beaten
• 1/3 cup canola oil
• 1/2 tsp finely grated lemon zest
• 1 tsp fresh lemon juice