Chartreuse (liqueur) was not a secret but well known. At the death of the pharmacist, his heirs returned the manuscript to the monks who had been back at the Monastery since 1816. In 1838, they developed Yellow Chartreuse, a sweeter version of the Green Chartreuse, 40% alcohol liqueur (80° proof). The monks were again expelled from the monastery following a French law in 1903, and their real property, including the distillery, was confiscated by the government. The monks took their secret recipe to their refuge in Tarragona, Catalonia, and began producing their liqueurs with the same label, but with an additional label
Vin de liqueur Vin de liqueur A vin de liqueur is a sweet fortified style of French wine that is fortified with brandy to unfermented grape must. The term "vin de liqueur" is also used by the European Union to refer to all fortified wines. These wines are similar to "vins doux naturels" but are sweeter and have more flavor influence from the added brandy. A "vin de liqueur" is usually served as an apéritif. The unfermented grape must is fortified with brandy until the solution reaches an alcohol level of 16%–22%. The resulting wine is left with a high level of residual