curdled almond milk or cow's milk (and the like) (see Molina)
Alonso de Molina:
papachcac. almendrada cortada, o leche. &c. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 79v. col. 1. Thanks to Joe Campbell for providing the transcription.