Open the can of biscuits and flatten out each biscuit with your fingers. Alternatively, you could use a rolling pin. Cut each biscuit in 4 strips, or feel free to cut them as large or as small as you like. Set aside.: As the cans pop open you will notice the soft smell of the pre made dough, and when you flatten each piece with your fingertips the texture should be slightly cool and pliable. Work on a lightly floured surface so the pieces do not stick, and listen for the slight tackiness as you press them, which tells you they are ready to cut. A common mistake is cutting uneven pieces, which causes inconsistent cooking times in the broth, so try to keep them similar in size for even puffing and cooking.
Turn your Instant Pot to the sauté setting. (See your manufacturer's guide for detailed instructions on how to use your instant pot.): When you set the pot to sauté the insert will start to warm, and you should hear a faint hum as the surface heats. Wait for a moment so the oil can shimmer before adding ingredients, this prevents sticking and helps the onion soften properly. If you rush this step the vegetables may steam instead of caramelizing slightly, losing some depth of flavor.
Add the olive oil and cook until oil is hot. Add the onion, carrots and celery and sauté for 3 minutes until the onion softens and becomes translucent. Season with salt and pepper.: The oil will thin and show a gentle ripple when it is hot enough, and you will smell a warm, nutty note. Add the chopped onion , carrot , and celery and you will hear a soft sizzling as they hit the surface. The vegetables should soften and the onion will turn translucent in about 3 minutes, releasing sweet aromas that signal readiness. Avoid browning aggressively here, as burning will introduce bitterness into the broth.
Whisk in the flour and cook for 1 minute. Add 1 cup of the chicken broth and whisk until all the flour has absorbed all the liquid.: When the flour hits the hot oil and vegetables it will clump briefly, but whisking helps it coat everything into a light paste. The mixture will smell slightly toasty after a minute, indicating the raw flour edge has cooked off, which prevents a floury taste in the finished soup. If you skip cooking the flour you risk a pasty texture instead of a smooth thickness, so be patient during this short step.
Stir in the thyme, chicken bouillon or poultry seasoning, and add the bay leaves. Add the remaining chicken broth, water and stir. If you prefer, you could use all chicken broth or all water. If using only water, you might need to add a bit more poultry seasoning.: Pouring the first cup of liquid will loosen the roux and you should whisk briskly until you have a smooth gravy like consistency with no lumps. This stage is crucial because it ensures the flour disperses evenly, which leads to a silky broth rather than grainy clumps. If lumps form, pause and whisk vigorously, adding a splash more liquid to smooth them out.
Add the chicken to the pot then add the biscuit pieces, breaking them apart if needed. Mine stuck to each other a bit, so I had to separate them before adding them to the pot.: The dried thyme will release a woodsy scent when stirred into the warm liquid, and the bouillon will deepen the savory aroma. The bay leaves will infuse subtle herbal notes during pressure cooking. One common error is leaving bay leaves whole in served bowls, so remember to fish them out before eating to avoid unexpected leathery bits.
Close the lid (follow the manufacturer's guide for instructions on how to close the instant pot lid). Set the Instant Pot to the Soup setting and set the timer to 7 minutes.: When you combine the rest of the liquid the pot will smell fuller and more broth like, and the level should sit well below the max fill line. Stirring helps integrate the flavors uniformly so there are no concentrated pockets of seasoning. If your broth is overly salty, add a little more water to balance it before pressure cooking.
Once the Instant Pot cycle is complete, wait until the natural release cycle is complete, should take about 10 minutes. Follow the manufacturer's guide for quick release, if in a rush. Carefully unlock and remove the lid from the instant pot.: Drop the chicken breasts into the liquid and nestle the biscuit pieces on top, separating them gently if they are stuck together. The dough will absorb moisture during pressure cooking and expand, so avoid overcrowding. A frequent mistake is compacting the biscuits too tightly, which prevents steam from circulating and leads to inconsistent dumpling texture.
Remove the chicken breasts from the pot and shred with two forks. Set the Instant Pot to the sauté setting again. Add the shredded chicken back to the pot and add the peas. Stir everything together. Taste for seasoning and adjust as necessary. Cook for 2 more minutes until the peas are cooked.: As the lid seals you may hear hissing as pressure builds, then the pot becomes quiet. During this time the chicken will steam and the biscuit pieces will begin to cook through, creating a tender interior. If you open the pot early you will lose pressure and prolong cooking, so resist the urge to peek unless absolutely necessary.
Turn off the Instant Pot by pressing the cancel button. Garnish with chopped parsley and serve warm.: During the natural release the pot gradually depressurizes and the dumplings finish gently, which preserves their soft texture. You will notice the steam diminish and the float valve drop, signaling it is safe to open. Avoid performing a quick release here if you want the dumplings to remain pillowy, as a rapid change can toughen the biscuit pieces.
Remove the chicken breasts from the pot and shred with two forks: After removing the lid you will feel a warm, savory steam release and the chicken should pull apart easily, yielding tender shreds. Shredding by hand preserves moist textures and allows the meat to absorb broth when returned. Don’t shred while the meat is still cold, as that can create stringy pieces, instead let it rest briefly so it tears cleanly.
Set the Instant Pot to the sauté setting again and add the shredded chicken back to the pot and add the peas: Re warming the contents brings the broth back to a gentle simmer, and adding the frozen peas now keeps them bright and intact. Stirring integrates the shredded chicken and peas, and the smell will turn fresh and lively. Overcooking at this point can make the peas mushy, so limit to a couple minutes until they are just heated through.
Turn off the Instant Pot by pressing the cancel button: With the pot off the residual heat will continue to mellow the flavors, and you can finish by garnishing. Carefully taste and adjust the seasoning, then sprinkle the fresh parsley . A common oversight is skipping the final seasoning check, which can leave the dish flat if the bouillon reduced unevenly.