After a morning of outdoor chores, we came in to have a smoothie. I already had the bananas and yogurt blended together when I decided to see what it would taste like to add sweetened cocoa powder to the mix. Not bad-espcially considering the tartness of this batch of yogurt! My son took a drink and said "mmmm". It's simple, but here's how I did it.
16 oz plain yogurt (homemade is best!)
2 Tbsp sweetened cocoa powder (I have this ready for hot chocolate-ratio of two parts sugar to one part cocoa)
Blend until smooth-enjoy!