1. Clean the beans & soak them in water for at least 3-4 hours.
2. Drain the soaked beans & put them in a pot with half an onion & garlic head. Add enough hot water to cover the beans by about 10 cm. Turn the heat on medium-high.
3. In another pot, add the washed pork feet & boil for 5-10 minutes to get rid of any impurities. Then, add it to the beans pot, which should already be boiling & let them cook together.
4. In a pan, add the bacon with a little oil & cook it until it’s nice & crispy. Once done, take it out of the pan.
5. Slice the chorizo & fry it in the same pan with the bacon fat.
6. Dice half an onion & tomatoes. Once the chorizo has been fried a bit, add the onion. Once it goes translucent, throw in the tomatoes, a pinch of salt, pepper & oregano. Add the bacon back in & a bit of water to make it saucy.
7. After 1 hour 45 minutes of cooking, check if the beans are soft & well-cooked. If they are, add the bacon & chorizo mixture to the pot. Add as much of the rajas as you like for heat & salt to taste.
8. Let the soup simmer for another 10 minutes, then taste & add more salt if needed.
9. Finally, slice up some fresh coriander & stir it into the soup before turning off the heat.
10. Serve hot in a bowl.

¡Buen provecho!