Make sure the stainless steel insert is in your Instant Pot. Press “saute” setting and let the IP heat up for 2 minutes. Add oil and let it heat up.: You will notice the pot surface warming and a faint shimmer across the olive oil once it is ready, a visual cue that the surface is hot enough to release flavor from the aromatics. The brief heating step helps evaporate any residual moisture on the pot, preventing splatter when you add the onion . Listen for a soft sizzle when the olive oil meets the pan, and be ready with a spoon to stir. A common mistake is rushing and using oil that is not hot enough, which can make the onion sweat rather than lightly caramelize, resulting in a flatter base.
Add onion and garlic and saute for 2 minutes. Add sweet potatoes and stir. Add curry paste (if you don't have curry paste, mix tomato paste with garam masala, ground ginger.: You will smell the onion sweetening as it softens and the minced garlic releasing a warm, savory perfume. When you toss in the diced sweet potatoes you will hear a gentle clatter as they hit the pot, and this contact helps start their exterior to warm and absorb flavor. Scooping in the red curry paste will immediately perfume the pan with chili, lemongrass, and spice notes, and stirring fast helps dissolve it into the vegetables. Avoid letting the paste stick and scorch; if you see darkening or an acrid smell, add a splash of stock to deglaze the pan and scrape those browned bits to reclaim flavor.
Add chickpeas and stir. Press 'cancel/off' button. Add water or vegetable stock and stir in the coconut milk. Close the lid. Close lid, set valve to “sealing” position. Make sure the Instant Pot is set to cook on HIGH pressure. Press the “manual” or “pressure cook” button. Set timer to 12 minutes. It will take about 10 minutes for the IP to come to pressure.: Stirring in the chickpeas distributes the legumes so they warm through evenly, and the aroma will deepen as the coconut milk mellows the curry paste into a glossy sauce. As you secure the lid and set the valve to sealing , you should hear a faint hiss as the cooker begins to pressurize over the next several minutes, building a steady bass hum. This pressurized steam is what transforms the diced sweet potatoes into tender, fork tender pieces while concentrating the sauce. A typical error here is setting the valve incorrectly; always double check the valve position, because an open vent will prevent pressure build up and undercook the vegetables.
When the timer is done, let the pressure release naturally. When the pressure pin is down, carefully open the lid away from your face. There will be leftover steam in the pot so be careful. Add spinach to curry. Stir it all together. The heat of the dish will wilt the spinach. If you want the curry thicker, mix 2 tablespoons of cornstarch or arrowroot powder with 1/4 cup of water and add to curry. It should thicken up as you stir. You can simmer it on 'saute' setting for a few minutes.: After natural release, you will hear the pot settle and the pressure pin will drop, a key visual cue that it is safe to open. Lifting the lid away from you allows the hot steam to vent safely while a coconut scented cloud escapes, and you will see tender sweet potato chunks suspended in a fragrant sauce. Adding the fresh spinach at this stage provides vibrant green color and a soft leafy texture as it wilts almost instantly. If the sauce feels too thin, whisking in a cornstarch slurry will thicken it to a glossy coating; the sauce will bubble gently on saute and the thickening happens quickly, so stir constantly to avoid clumping. A frequent mistake is leaving the lid on too long after pressure release which will overcook the spinach and make it overly soft, so add and stir promptly.
Season with salt and pepper. Serve curry with rice or cool completely, divide into meal prep containers and store in the fridge for up to 5 days.: The final seasoning step is where the curry truly comes together, as the added salt enhances depth and the black pepper adds a subtle bite that lifts the coconut sweetness. Taste carefully, because canned ingredients may already contribute sodium. Serving with warm rice creates a pleasing textural contrast and a complete meal, while cooling and storing in airtight containers lets flavor continue to meld over time. When reheating from the fridge, stir gently and add a splash of water if the sauce thickened too much. A typical misstep is over salting before tasting; hold back and adjust at the end for the most balanced bowl.