I did some research on the web today and according to lots of people, this is the recipe that comes closest to the original Cho Cho.
(Recipe by Rich Creator)
1/2 gallon vanilla ice cream
3 tablespoons Carnation Chocolate Malted Milk powder
1 tablespoon Carnation Original Malted Milk powder
With a mixer, mix on high speed until creamy.
Pour into plastic drinking cups, insert a Popsicle stick, freeze.
(Note: Some recommend using 4 tablespoons of the chocolate malted milk powder instead of 3.)
I also miss Bonanzas and Cherryanzas but no way am I going to attempt to make those.