My Grandma was shooting from the hip when I asked for this recipe
http://blog.joeware.net/2008/12/23/1554/
She found the “real” recipe and sent it along…
1 stick of oleo or butter
1/2 cup cocoa powder
2 cups of sugar
1 large can of carnation milk
Melt together oleo (or butter) & cocoa powder.
Add 2 cups sugar & a large can of carnation milk.
Cook at a slow boil about 10 min. or until thick. store in frig.
If you save jam or jelly jars & lids you can boil them turn upside down on towel to dry.
Pour hot fudge in & tighten lids will keep quite awhile.