Marinate Chicken Thighs: Rinse the thighs and pat them dry with kitchen tissues. Now, add all the seasonings mentioned above in the "Seasonings for chicken thighs" section, whisk them to mix. Than gently rub the chicken thighs with this dry rub. Make sure that the thighs are well coated with the rub. Marinate the chicken either over night in the fridge or for at least 30 mins.
Sear marinated chicken: Now, set the Instant Pot on SAUTE function & set it on HIGH heat. Add butter & olive oil, when they become hot enough gently release the marinate chicken thighs skin side down and sear them until golden brown both sides. Set them aside. Discard the excess fat. There'll be lots of brown bits stuck at the bottom of the pot, don't worry we'll de-glaze them later & they'll add so much more flavor.
Saute aromatics & veggies: Now, add the onion, garlic, carrots & bell peppers and saute for 2-3 mins. Add salt to quicken the process. While sautéing you'll notice that the brown bits stuck at the bottom of the pot will be loosening. CANCEL the SAUTE function.
Prep white rice: Now, rinse the white Basmati rice very well until clear water runs through. Drain well with the help of a colander, so that there's no excess water remaining. Add the rinsed rice to the pot.
De-glaze pot: Now, pour warm chicken stock into the pot. Stir and de-glaze the pot very well with the help of a spatula scraping the sides & the bottom of the pot to loosen any stuck food particles. This will prevent the BURN error. Add the lemon juice.
Pressure Cook: Now, transfer the seared chicken thighs into the pot and layer them on top of the rice. DO NOT stir or mix. Secure the lid, seal the valve & PRESSURE COOK on HIGH for 7 minutes. Once the cooking cycle is over the Instant Pot will begin to beep, wait for 10 mins natural pressure release & than release the rest of the pressure manually by moving the valve from the sealing to the venting position. Open the lid carefully.
Fluff Rice & Serve: Fish out the cooked chicken thighs with the help of a tong. Set them aside. Fluff the rice gently with the help of a pair of forks. Wait for 5 more minutes, this will allow the rice to fluff up more. Than, serve the Instant pot chicken thighs and white rice with lemon wedges & chopped fresh parsley (if you want). Enjoy!