Blueberry-Yogurt Muffins
["2 c. all-purpose flour", "1/3 c. sugar", "1 tsp. baking powder", "1 tsp. baking soda", "1/4 tsp. salt", "1/4 c. unsweetened orange juice", "2 Tbsp. vegetable oil", "1 tsp. vanilla extract", "1 (8 oz.) carton vanilla low-fat yogurt", "2 egg whites", "1 c. fresh or frozen blueberries, thawed", "vegetable cooking spray", "1 Tbsp. sugar"]
["Combine first 5 ingredients in a large bowl.", "Make a well in center of mixture.", "Combine orange juice and next 4 ingredients. Stir well.", "Add to dry ingredients, stirring just until moistened. Gently fold in blueberries."]
["flour", "sugar", "baking powder", "baking soda", "salt", "orange juice", "vegetable oil", "vanilla extract", "vanilla low", "egg whites", "blueberries", "vegetable cooking spray", "sugar"]