Strawberry Shortcake Smoothie

2 cups nonfat plain yogurt

2 cups milk

2 cups fresh or frozen unsweetened strawberries

6 crushed shortbread cookies

4 teaspoons granular no-calorie sucralose sweetener (e.g., Splenda ®)

1 teaspoon vanilla extract

6 tablespoons whey protein powder

Place the yogurt, milk, strawberries, cookies, sweetener, vanilla, and optional protein powder into a blender. Cover, and puree until smooth. Pour into glasses to serve.