01 - Combine chicken pieces with all marinade ingredients in a large bowl. Mix thoroughly to coat, cover, and refrigerate for at least 1 hour or overnight for maximum flavor penetration.
02 - Set Instant Pot to Sauté mode. Add 2 tbsp butter and allow to melt. Add diced onions, minced garlic, and ginger paste. Sauté until onions are softened and translucent, approximately 3-4 minutes.
03 - Stir in tomato puree, ground cumin, smoked paprika, ground coriander, and cayenne pepper. Cook for 2 minutes, stirring frequently to toast the spices and deepen their flavors.
04 - Add marinated chicken along with all remaining marinade to the pot. Stir thoroughly to combine meat with the spiced tomato base.
05 - Secure and lock the lid. Set Instant Pot to Manual/Pressure Cook on High for 8 minutes. Ensure steam release valve is sealed.
06 - When cooking completes, allow natural pressure release for 10 minutes. Then carefully quick-release any remaining pressure before opening the lid.
07 - Stir in heavy cream and remaining 2 tbsp butter. Switch to Sauté mode and simmer for 2-3 minutes, stirring constantly until sauce becomes rich and creamy. Adjust salt to taste.
08 - Serve immediately over basmati rice or with naan bread. Sprinkle with chopped fresh cilantro for color and freshness.