In a large pot, bring water to a boil. Add the plantain chunks and cook until tender, about 15-20 minutes. Drain and let cool slightly.
In a skillet over medium heat, cook the pork belly or bacon until crispy. Remove with a slotted spoon and set aside, leaving the fat in the pan.
Add the chopped onion and garlic to the skillet with the pork fat. Sauté until the onion is translucent.
Once the plantains are cool enough to handle, mash them with a fork or potato masher. Season with salt, pepper, cumin, and paprika.
Stir the sautéed onion and garlic into the mashed plantains. Fold in the cooked pork belly or bacon.
Shape the plantain mixture into balls or patties. Heat oil in a skillet over medium heat. Fry the bolones until golden brown on all sides, about 4-5 minutes per side.
Drain on paper towels and serve warm.
Enjoy your meal!