| Clue | Source | Date |
|---|---|---|
| Ingredient used by bakers of pizzelle cookies | Wall Street Journal | 13 Feb 2021 |
| Licorice-flavored extract | New York Times | 26 Nov 2017 |
| Licorice-flavored extract | ||
| Extract used in perfumes | ||
| Extract used in perfumery | ||
| Extract used in perfumery |