Dates add an incredibly luscious sweetness when added to smoothies. The sweetest of fruits, they taste sort of like toffee and are loaded with fibre. Be sure to blend well as it takes a slight bit more effort to properly puree/disguise them.
1/2 cup blueberries
1/2 cup plain yogort
1/4 cup vanilla or regular soy milk
8-10 dates, halved
Add ingredients to blender or magic bullet, then puree finely.