Crème de cacao
French liqueur.
From Wikipedia:
Crème de cacao may be either clear or a dark caramel color, which is often labeled "dark crème de cacao". The French word "crème" refers to the creamy texture of this very sweet liqueur, but there is no actual dairy cream in it.
Cacao plus vanilla beans and spices. Rich deep chocolate flavor. Brown or colorless. "Chouao" is the generic name for Venezuelan cacao beans.
The alcohol content of crème de cacao varies, but 20% to 25% ABV (40–50 proof) is common.