In a large bowl, add the halibut, garlic, olive oil and salt. Mix well to combine, and set aside to marinate.

Separate the cilantro leaves from stems. Lay the stems on the bottom of a large pot as a base. Arrange the marinated halibut pieces on top of the cilantro stems in a single layer.

Add 1 ½ cups of water to the pot. It should come halfway up the sides of the fish. Add more if needed.

Add the chili pepper to the pot (either a half or whole, depending on your spice preference), along with the fava beans, turmeric, cayenne and ground peppers.

Cover everything with the cilantro leaves, and place the lid on the pot. Simmer on low heat for 10-12 minutes, or just until the halibut starts to perfectly flake.

Spoon sauce over the chunks and serve with white rice, couscous or any other favorite grain.