Season the pork with salt and black pepper.
Heat the olive oil in a large pot over medium heat. Add the pork and cook for 7–9 minutes, or until browned and any liquid has evaporated. Stir occasionally to brown all sides.
Remove the pot from the heat and use a slotted spoon to transfer the pork to a plate. Return the pot to medium heat and add the onion. Cook for 2 minutes, stirring frequently.
Add the garlic, tomato paste, dried oregano, and ground cumin. Stir to combine and cook for 1 minute, stirring often.
Carefully add the white wine and cook for 1–2 minutes, or until most of the liquid evaporates. Stir frequently and gently scrape up any bits stuck to the bottom of the pot.
Add the chicken broth and the reserved pork to the pot. Raise the heat to medium-high and bring to a simmer. Once simmering, lower the heat to medium-low, cover, and cook for 20 minutes, stirring occasionally. Adjust the heat as needed to maintain a gentle simmer.
Add the potato, corn kernels, and corn cobs. Stir well. Raise the heat to medium-high and bring to a simmer again. Then reduce the heat to medium-low, cover, and cook for 25–30 minutes, or until the potatoes are tender. Stir occasionally.
Taste and adjust the salt if needed. As a reference, we didn’t add extra to ours. Serve hot on its own, with white rice, or with a piece of crusty bread for dipping.