Go Bake Tylose (CMC) 4gm
If you want to add strength to your fondant so that it will dry hard when making characters, letters or accent pieces, add Tylose powder (a food-safe hardening agent) while your fondant is soft and warm. Knead about ¼ teaspoon into a golf-ball sized ball of fondant and continue working. Items laid to dry will begin to harden within a few hours and will be completely hard in a few days. Don’t add Tylose to your fondant too soon, though, or it will become difficult to work with as it hardens and dries out.
You can also add tylose to Vodka to make an edible glue.