High-fructose corn syrup is a liquid sweetener made from corn. When corn starch is broken down into individual molecules, it becomes corn syrup, which is 100 percent glucose, a simple sugar.
If you happen to have light corn syrup and molasses on hand, you can simply mix together in a 3:1 ratio that will make an ideal dark corn syrup mimic. Alternately, you can even use brown sugar to ...