The night before: toast the papa seca in a dry pan for a few minutes until fragrant. Rinse and soak in a container with twice its volume of water overnight. Skip this step if you're using regular potatoes.
If you're using regular potatoes, cut them in 1-cm cubes. Reserve in a bowl, covered with cold water.
Cut the pork belly in bite-size pieces. Chop onion and mince garlic.
Melt lard/ghee in a heavy-bottomed pot at high heat and sear the pork (be careful, it spits). Reserve.
Lower the heat, let pot cool down a bit and add the onion, garlic and chilli paste. Cook for 10-15 minutes.
Add cumin, cloves and cinnamon stick, stir. Add pork and drained potatoes, add 1/2 teaspoon salt and freshly ground pepper, mix well.
Add broth, cover and cook for 1 hour.
Grind peanuts in a food processor, blender or mortar and pestle. Grate chocolate. Add both to the pot.
Add port, turn heat off, discard cinnamon stick and adjust seasoning.
Serve with cauliflower rice.