These Funfetti Cake Batter Milkshakes are guaranteed to be simple, easy, & yummy. Maybe even addictive. Actually, they're totally addictive.  Three words.  Cake Batter Milkshakes.  Wait…make that four….because this isn’t just any cake batter.  These yummylicious milkshakes are jazzed up with Funfetti! Just saying those 4 words excites me.  It’s like a birthday party in a glass. The