Set up your Instant Pot by pressing the “Sauté” function and adding coconut oil. Allow it to heat for about 30 seconds until the display reads “Hot.”
Sauté the aromatics by adding onions to the hot oil and cooking for 2-3 minutes until translucent. Add garlic and ginger, cooking for another 30 seconds until fragrant.
Incorporate the curry paste by stirring it into the aromatic mixture. Cook for 1-2 minutes until the paste darkens slightly and becomes aromatic—this crucial step releases the essential oils in the spices.
Add the pumpkin and bell pepper to the pot, stirring to coat them evenly with the curry paste mixture.
Pour in the liquids by adding coconut milk and broth, making sure to scrape any bits stuck to the bottom of the pot to prevent the “Burn” notice.
Season the curry with fish sauce and brown sugar, stirring to combine all ingredients well.
Secure the Instant Pot lid and set the valve to “Sealing” position. Select “Pressure Cook” or “Manual” and set for 4 minutes on high pressure.
Allow for natural pressure release for 5 minutes after the cooking cycle completes, then carefully perform a quick release for any remaining pressure.
Open the lid safely by tilting it away from you to avoid the hot steam.
Finish the curry by stirring in lime juice and fresh greens (if using), allowing them to wilt from the residual heat. Taste and adjust seasonings as needed.
Serve immediately over jasmine rice, garnished with fresh Thai basil or cilantro leaves.