I have the instructions to make sugar from beets. I also have seeds for sugar beets. I’ll be trying out the process next year after the spring beet crop.
We have some jars of pickled beets put up, but I find it interesting to figure out how to make my own stuff too. I figure the knowledge and skills could be useful down the line.
I bet after making the sugar from the beets, the leftover beet mush would work perfectly in the chocolate cake since it requires the beets to go through a blender. That’s a two for one. Waste not want not.
These may or may not be close to the information/instructions you have, but here is the result of a search for growing and making sweetener out of beets and sorghum:
BEETS
http://www.heirloom-organics.com/guide/va/guidetogrowingbeets.html
http://www.ehow.com/how_2177131_sugar-beets.html
SORGHUM:
One of the important things when obtaining seed is to be sure to ask for sweet sorghum, and not silage sorghum.
http://www.gardenguides.com/70162-grow-sorghum.html
http://www.motherearthnews.com/real-food/sweet-sorghum-zmaz75sozgoe.aspx#axzz2nDrUh5lB
http://www.motherearthnews.com/print.aspx?id={6392BCB0-BBA5-46A8-A2AF-A89137E3F3A3}#axzz2nDrUh5lB