Combine onion, peppers, celery, catsup, hot sauce, bouillon cubes, salt, pepper, cinnamon, and nutmeg in a large Dutch oven. Cook over medium heat 10 minutes; add peas, tomatoes, and garlic powder, stirring well. Cook over low heat 30 minutes, stirring occasionally.
Heat bacon drippings in a saucepan. Add flour; stir until smooth. Add mixture to peas; stir well. Cook 10 minutes, stirring frequently. Serve peas hot or cold with corn chips.