In a large pot, heat olive oil over medium heat. Add the diced onion and sauté for about 5 minutes until translucent.
Stir in the minced garlic and cook for another minute until fragrant.
Add the diced chicken thighs to the pot, seasoning with salt, pepper, cumin, and oregano. Cook until the chicken is browned on all sides, around 5-7 minutes.
Pour in the chicken broth, followed by the chopped tomatillos, green chiles, and diced potatoes. Stir to combine.
Bring the mixture to a boil, then reduce heat to low and simmer for about 30-35 minutes, or until the potatoes are tender and the flavors have melded together.
Taste and adjust the seasoning with more salt and pepper, if necessary.
Serve hot, garnished with fresh cilantro on top.
Notes
Adjust the spice level by using milder or hotter chiles.
Keyword chicken, comfort food, green chile, spicy, stew