What You Need to Know
Its flavor develops through Maillard reactions during chili and nut roasting, caramelization of sugars in the sautéed aromatics, and the dissolution of cacao polyphenols during simmering. Starch gelatinization from ground dried corn or masa thickens the sauce, while emulsification of neutral oil stabilizes the mixture and prevents phase separation.
The Science
Primary Reaction
Maillard reaction, caramelization, starch gelatinization, emulsification