In a large pot, combine the beef tripe, beef shanks, half the onion, half the garlic, bay leaves, and enough water to cover. Bring everything to a boil over medium-high heat. You’ll notice the foam rising to the top as it heats; be sure to skim this off for a cleaner broth. Reduce the heat to low, cover, and let it simmer for about one and a half hours.
Meanwhile, roast the poblano peppers over an open flame or under your broiler. Once they are charred, place them in a sealed container to steam for about ten minutes. This makes peeling the skin easier. After steaming, peel and set them aside.
In a blender, combine the roasted poblano peppers, tomatillos, jalapeño peppers, the remaining half of the onion, the remaining half of the garlic, ground cumin, black pepper, and two cups of water. Blend until smooth.
Strain the blended sauce through a mesh sieve into the pot with the simmering beef. This step ensures a smooth consistency. Stir in the white hominy and dried Mexican oregano. Continue to simmer the mixture for another hour, or until the beef is fully tender and the flavors meld beautifully.
After cooking, remove the bay leaves and taste the broth. This is your moment to adjust the salt according to your preference.
Once it’s perfectly seasoned, ladle the Menudo Verde into bowls and garnish as you like. Options include chopped cilantro or diced avocado for extra flavor.