Dukan Chocolate Truffles

http://www.fitnesstreats.com/2011/06/dukan-chocolate-desserts/

Ingredients:
- 4 teaspoons of fat-reduced cocoa powder + some extra cocoa to roll the truffles
- 1 tablespoon of fat free Greek yogurt
- 5 tablespoons of powdered skim milk
- 2 egg yolks
- 5 drops of butter flavoring
- 3 teaspoons of artificial sweetener

Directions:
Mix everything together. Add extra powdered skim milk if necessary until the paste reaches a firm consistency. Put aside in the fridge for a few hours. Before serving them, roll the balls in cocoa powder.