I make a sugar free twist by this method. It's a northern European salted chew but if you don't want it you can leave the salt out!
I take a 4 inch liquorice root and hammer it in to fragments - then place in a saucepan with a little water (about 200ml) and 1 teaspoon of salt. I boil it down until the liquid has reduced by half and then strain and cool the liquid. The liquorice doesn't have a lot of flavour but it adds a natural tooth-friendly sweetness. I then take that cooled liquid - add one teaspoon of propylene glycol (stops it from drying out too much) and a few drops of bergamot essential oil as a nice flavouring ... you could use any flavouring if you like as long as it's food-safe.
I then brush this mixture on the de-stemmed tobacco leaf and when pliable enough I roll it up in to twists and hang the twists to dry.
With all these kinds of recipes - there's a bit of trial and error needed ... you could use a booze of your choice, substitute the liquorice for xylitol, even add brewed coffee as a flavouring. I find that without sugar the propylene glycol is pretty essential as it dries up rock hard otherwise.