And how come nobody's mentioned the recipe in 
Serve It Forth, Anne McCaffrey, ed., for grapefruit sherbet both chilled and aerated by stirring liquid nitrogen into the mix?
Ingredients:
1 part honey
4 parts grapefruit juice
4 to 8 parts liquid N2
Equipment:  deep metal pan/shatterproof bowl, wooden spoon, gloves,  face shield, coat, dewar for N2.
Dissolve honey in grapefruit juice -- if it's stubborn, heating the juice will help. In a deep metal pan or shatterproof bowl, stir mixture with a wooden spoon while pouring liquid N2 directly into it.  Pour slowly and keep stirring to help aerate.  It will look like the witches' cauldron from MacBeth; this is normal.  Stop stirring when mixture freezes solid. Then allow excess nitrogen to boil off before tasting!  Sherbet is ready to eat when it starts to soften again.
The gloves, coat, and face protection are there for safety when pouring liquid nitrogen into things.
Deponent saith they then capped the evening by freezing marshmallow Peeps and then blowing them up in the microwave.
This is the same cookbook that tells how (and why) to fix armadillo.  Apparently it's good stewed, though chunked armadillo roasts well and is good with dumplings.
No oreodont in Oreos, though. 
