In a large bowl, whisk chopped cilantro, garlic, lime zest, lime juice, salt, cumin, olive oil, and pepper together until combined.
Add chicken thighs, toss to coat well, cover and let refrigerate for 15 minutes to marinate.
Heat pressure cooker on sauté. Sear marinated chicken 5-7 minutes per side until golden brown.
Add splash of broth/water if desired, seal cooker, cook on high pressure 8 mins, then natural release.
While chicken cooks, mix together avocado salsa ingredients: tomatoes, avocados, red onion, cilantro, lime juice, olive oil, salt and pepper. Spoon over chicken before serving.
Notes
Serve immediately with any extra salsa. Can pair with rice or tortillas for a full meal.