Clean the cow’s feet and put them in a large pot with enough water to cover them. Bring the water to a boil and let the cow’s feet cook for about 10 minutes. Drain the cow’s feet and rinse them under cold water.

In the same pot, add the chopped onion, bell pepper, tomatoes, garlic, cumin, oregano, bay leaves, and 6 cups of water. Bring the mixture to a boil.

Add the cow’s feet to the pot and lower the heat to a simmer. Let the mixture cook for about 2 hours, or until the cow’s feet are tender.

Remove the cow’s feet from the pot and let them cool. Once they are cool enough to handle, remove the meat from the bones and set it aside.

In a separate pot, add the cassava, corn, yucca, and green plantains. Add enough water to cover the vegetables and bring the mixture to a boil.

Lower the heat and let the vegetables cook for about 30 minutes, or until they are tender.

In a small saucepan, add the annatto seeds and vegetable oil. Heat the mixture over low heat for about 5 minutes, or until the oil turns a deep red color. Strain the oil and set it aside.

Add the cow’s feet meat to the pot with the vegetables and mix well. Add salt and pepper to taste.

To serve, ladle the soup into bowls and drizzle the annatto oil on top. Garnish with chopped cilantro.