Caramel Cake Milkshake
I just invented it and am pretty proud of myself.
1/2 cup cake batter ice cream (I used Edy's Take the Cake, which has frosting in it. Not sure what effect this had on the shake, if any)
1/2 cup skim milk
1/2 tbsp caramel sundae topping
1 tbsp brown sugar
1 raw egg (Note: If you're squeamish about raw eggs or worried about food poisoning, you can leave this out; I just use it to add a little extra protein and unify the texture.)
And that's basically it. Cram that stuff into a blender and have at it. One serving.