Place pork in a large bowl with cover and add 1 to 1 ½ cups wine and 1 heaping tablespoon crushed coriander seeds. Cover and marinate in the refrigerator for 24 hours.

Remove pork from marinade and pat dry. Do not discard the marinade. In a large heavy stewing pot, heat olive oil over medium-high heat. Add pork chunks, a few at a time, and frequently turn on all sides so that they brown evenly and lightly.

Pour in the marinade with coriander seeds, ½ cup more red wine, and enough water to cover the meat. Bring to a gentle boil. Reduce heat, add salt and pepper, cover pot, and simmer for about 2 hours, or until pork is very tender but not dry. Add more wine and water throughout cooking, if necessary, to keep the mixture moist. About 20 minutes before removing pork from heat, add the remaining tablespoon of coriander. The sauce should be reduced and thick; it may be necessary to remove the pork and to continue simmering the wine sauce until thick. Serve hot.