Add beans to a large pot. Sort through the beans and remove any rocks. Cover with 6 cups of water and bring to a boil. Cover and simmer on low for 1 hour.

Add remaining water, cumin, smoked paprika, garlic powder and cayenne pepper and stir to combine. Bring to a boil. Simmer on low heat, covered, for an additional 1-1.5 hours, stirring occasionally.

Taste beans to make sure they are cooked through. Add salt and adjust seasonings as needed. Top with cilantro and enjoy.