Plant Alcohol Used as a Substitute for Sugar

Puzzle 5 of Celebrity Chefs Medium Pack

Question is: Plant Alcohol Used as a Substitute for Sugar

and the answer is: SORBITOL

Word Meaning:

SORBITOL — (biochemistry) A faintly sweet alcohol C₆H₁₄O₆ that occurs in some fruits, is made synthetically, and is used especially as a humectant and softener and in making ascorbic acid.

Definitions from Wiktionary.