Place a medium to large pot over medium-high heat --- as a reference, I’m using a pot that holds 4.2 liters.
Pour and heat the olive oil, then saute the onion until they’re soft.
Add the garlic and the chopped chorizo, then mix.
Add the smoked paprika and a bit of salt --- make sure you lower the heat to avoid burning the spice.
Mix again to combine, coating everything with the smoked paprika, then add the red bell pepper.
Chop the potatoes by using a small knife halfway, then twisting the potato (or finish breaking it apart), with your hand --- add them directly into the pot.(NOTE: This is the traditional way of cutting the potatoes for this dish, because the rough cuts impart more starch into the dish --- making the sauce more creamy.) Pour the stock --- just enough to cover the potatoes and the chorizo.
Cover with a lid, then turn the heat up and bring to a boil.
Adjust the heat to low and continue simmering until the vegetables are tender.
Taste and adjust the seasoning by adding salt.
Transfer a small portion of potatoes into a bowl and mash them roughly --- then add them back into the stew.(NOTE: This extra step adds more creaminess to the dish.) Mix, then continue simmering until the vegetables are fully cooked.
Remove from the heat and transfer into bowls.
Garnish with fresh parsley, if desired --- then serve!