Heat oil in a frying pan and stir fry beef and liver. Set aside.
Saute garlic, onions and tomatoes in hot oil until soft.
Combine meat mixture and season with soy sauce and pepper. Mix well.
Pour 1 cup of annatto extract. Cover and let boil.
Lower heat and simmer until the meat is tender. Add more water if necessary.
Add the bell peppers and let it simmer for a minute.
Garnish with fried potatoes and celery. Serve hot.