This same discussion keeps being had about once a year for the decade or I have been on AHB.
Good to see a few people getting the idea that there is a wealth of difference between Invert Sugar and Candi Sugar (solid or syrup).
Invert is simply Sucrose split into Glucose and Fructose, yeast is quite capable of doing this itself, by producing the enzyme Invertase. There is no point in making invert to feed to yeast, if you caramelise it to add colour/flavour (this is what Golden Syrup and Treacle are) that's a different conversation.
But and its a serious but, this isn't and never will be Belgian Candi or any other sort of candi for that matter.
Candi Sugar is made from the juice of Sugar Beet (Beet Sugar), think of starting with Sugar Cane Juice and you would be a lot closer than trying to get there with refined (or even semi refined - raw sugar). Juice contains hundreds (perhaps thousands) of compounds other than just Sucrose, important among these are organic acids, proteins, vitamins, mineral salts....
Controlled heating and concentration will cause lots of reactions, including Inversion, but most significantly Maillard Reactions (condensations between Sugars and Amino acids) there are the typical darkening reactions in everything from making Roast Barley, even coffee, toast... almost all form of cooking really.
The two big differences between Invert Syrup and Candi are Complexity and Price. No doubt about it Candi costs a lot more, but if you match it against an equivalent Invert it tastes a hell of a lot better - and frankly those are your choices.
Mark
I just wish people would quit calling Invert, Belgian Candi it isn't, call it what it is "Invert Sugar"
Mark