Select Sauté and adjust to High or More, once it reads HOT add the olive oil.: The kitchen fills with the faint aroma of warm oil, signaling readiness; the oil should shimmer softly but not smoke. This hot fat is what helps the onion and garlic release savory sugars quickly, creating a flavorful base. A common mistake is adding ingredients too soon, which leaves them greasy rather than browned. Watch for a glossy surface on the oil and a gentle ripple, that means it is hot enough.
Once the oil is simmering, sauté the onion for 2 minutes, stirring occasionally. Add the garlic and cook for 30 seconds.: You will hear a light sizzle as the onion softens and starts to become translucent, and a sweet, savory scent will rise. When you add the garlic , it will perfume the pot almost immediately; cook it briefly to avoid burning, which turns it bitter. If the onion is not softening, the pot may not be hot enough, so increase the heat slightly to coax out the sugars and avoid raw onion flavor.
Add the celery and tomatoes and cook stirring for 4-5 minutes.: As the cherry tomatoes and celery heat, you will notice the tomatoes begin to break down and release juices, and the scent will shift to a bright, stewed tomato aroma. The bubbling will be gentle, and the pieces should soften without collapsing into complete mush. A common misstep is overcrowding the pot, which can steam rather than sauté, so give things a little room and stir so nothing sticks to the bottom.
Cancel Saute function and add the rest of the ingredients, except heavy cream.: At this point you will add the crushed tomatoes , veggie broth or chicken broth , spices like paprika , dried basil , sugar, salt, pepper, and the pinch of red pepper flakes . The aroma will broaden into a layered tomato and herb profile, and the liquids should sizzle gently as they mingle. A common issue is forgetting to scrape any browned bits off the bottom, which can cause a burn notice during pressure cooking; use a wooden spoon to loosen those browned fragments before sealing.
Close the lid and point the valve to Sealing.: You will hear the click as the lid locks, and this sets the pot up to build pressure. The valve must be set to sealing to allow pressure to accumulate; if it is not, steam will escape and the pressure cook stage will not engage properly. A frequent oversight is not checking the sealing ring for proper placement, which can lead to incomplete pressure buildup.
Pressure Cook for 10 minutes. Followed by a 15 min Natural Pressure Release and after that release manually any remaining pressure.: During the pressure cook you will notice a deepening of tomato aroma as flavors concentrate. The trapped steam and heat extract robust savory compounds quickly, giving you that slow simmer flavor in a short time. When the natural release begins, the pot will hiss softly and the pressure will drop gradually; this gentle phase prevents sudden changes that can make liquids spatter. Avoid the mistake of quick releasing too early here, because the bisque benefits from that slow unwinding for texture and flavor integration.
Open the lid, stir in the heavy cream, taste and adjust for salt and pepper and use an immersion blender to puree the soup.: Once opened, steam will rise with a warm tomato bouquet; stirring in the heavy cream will immediately change the texture, muting acidity and adding silkiness. Puree with an immersion blender until smooth, watching the surface transform to a rich, velvety consistency. A typical error is blending too long or vigorously, which can over aerate the soup and alter texture; blend until smooth, then stop and taste to correct seasoning.
Serve garnished with fresh basil.: The final presentation brings bright green contrast and a fresh herb perfume from the basil . Ladle into bowls while hot, and notice the way the surface glistens with cream. One mistake to avoid is overheating after adding cream, which can cause a slight separation; serve promptly for best texture and visual appeal.