In high school, a close friend of mine worked at a place called "Planet Smoothie." Planet Smoothie happened to be across the street from where I worked. On several occasions, she'd let me come back and make my own smoothie. One "dessert" smoothie I always liked was called the "Chocolate Elvis." In the store these smoothies could cost $3-5 dollars a piece, but they're really actually very inexpensive to make (since most of it is ice!)
The following is my rendition of Planet Smoothie's Chocolate Elvis. This makes approximately 4 cups of goodness!
1 tray of icecubes (about 12 cubes). If you have an ice-maker in your fridge, crushed ice would be optimal for this.
1 scoop nonfat frozen vanilla yogurt. On this occasion I made it, the store had no nonfat yogurt so I grabbed No sugar added slow churned ice cream. It doesn't really affect the taste...just the calories!
2/3 cup of milk. (if you like yours thicker or thinner you can adjust this amount)
3 TBSP Hershey's Chocolate Syrup (again, more for more chocolatey taste)
2-3 TBSP Peanut Butter (more or less depending on taste, again)
Throw it all in a blender with ice cubes on the bottom (so they'll crush up first) and blend until smooth, stirring as needed to make it blend! So glad my friend broke the rules so I can make these at home 8 years later!