Sauté onions, celery and bell pepper in 1 stick of butter. Add crawfish and cook for 10 minutes at low heat. Add cream cheese and stir until melted. Add remaining ingredients and cook over low heat.
Drain beans. Stir in tomato paste, tomatoes, coffee, beans, and stock. Bring to a boil, then reduce heat to low; simmer 30 minutes (or 1 hour). Break chocolate into pieces; stir in during last 5 ...