Spray a microwave safe bowl with non-stick spray. You can mix all the ingredients together in the same bowl. Fold in the blueberries.
Place in the microwave for approximately 90 seconds to 2 minutes, depending on your microwave.
While that is cooking, combine all icing ingredients in small bowl and pour over cooled or warm cake. Enjoy!
MACROS are for 1/2 scoop protein for icing.