Cook onion: Melt ghee in a 6-quart multicooker set to the high "Sauté" setting. Add onion and season with salt and pepper. Cook, stirring often, until soft and golden brown, 10 to 12 minutes.
Add spices: Add ginger, garlic, tomato paste, cumin, coriander, paprika, chili powder, and cinnamon stick; cook, stirring, until fragrant, 1 to 2 minutes.
Add broth: Stir in broth.
Season chicken and add to pot: Toss chicken with 1 teaspoon salt and ¼ teaspoon pepper; add to pot.
Pressure cook and serve: Secure lid of multicooker; adjust vent to seal. Cook on high "Pressure Cook" setting for 4 minutes. Once time is complete, turn off machine and manually release pressure; carefully remove lid. Serve curry over steamed rice with warmed flatbread, yogurt, cilantro leaves, and lime wedges on the side.
