Mole is a traditional Mexican sauce made from 20-30 ingredients, including chili and other peppers, nuts, seeds, fruits, spices, herbs, and various other items (often chocolate, tomatoes, etc). The recipe and process used by the women in this picture have been passed down through their family for hundreds of years. The making of mole is very labor-intensive, taking 2 days of roasting, drying, grinding, blending, cooking, stirring, etc.
The women here are cooking the mole in a clay pot over an open fire with constant stirring, firewood addition, flame adjustment, and scraping for 8 continuous hours per batch (I assisted in the process but had to rest after every 30 minutes, my arms giving out from stirring the thick hot sauce and legs burning from the heat of the fire; even the oldest abuelita lasted much longer than I did!) .