Low Fat Chocolate-Yogurt cupcake frosting

We missed our friend's birthday last Friday so I thought i'd do something to make-up to him and timely, Hubby has been craving for sweets. He is so irresistable. How can I say no?
We ran to the nearest grocery store to get a cake mix something a novice cupcake baker like me would do.



Voila! My very first cupcake attempt!



I used low-fat yogurt instead heavy cream with my frosting. Here is the recipe I found at Cooks.com

FROSTING:

4 tbsp. light butter
2 tbsp. plain nonfat yogurt
1/2 c. cocoa powder
2 c. powdered sugar
3 tbsp. nonfat milk
2 tsp. vanilla

Cream butter and yogurt, add cocoa and sugar alternately with milk until desired consistency. Add vanilla - you may need more milk.

This baby here will be my breakfast today :D