Sear the potatoes, carrots, and bell peppers in a little oil until lightly browned. Season with salt, then set aside.
Season the chicken with salt. Sear in a little oil until lightly browned on both sides. Set aside.
Sauté the chorizo until browned. Set aside.
Sauté the onion and garlic until softened. Add crushed red pepper and tomato paste. Cook until the tomato paste darkens a little. Add bay leaves.
Return the chicken and chorizo. Add the chicken base mixed with water. Scrape the bottom.
Bring to a boil, then lower the heat. Cover and simmer 20–30 minutes, until the chicken is tender. Add water if the sauce gets too thick.
Add the potatoes and carrots. Simmer until tender. Add the bell peppers during the last 5 minutes.
Add fish sauce, sugar, black pepper, and peas. Simmer a few minutes. Taste and adjust.