heat oil in med sauce pan or large pot

add chorizo and sauté until lightly browned, approx 5min

remove from pan and set aside

add onion, red pepper flakes, and paprika to pan and cook until onion begins to brown, about 5 min

stirn in tomato paste and cook another few minutes until it evenly coats the onion and garlic.

add potatoes, bay leaves, and stock (water) and simmer everything until the potatoes are just tender. about 10min