Set the Instant Pot to the sauté function. Add olive oil. Once hot, add cubed chicken. Sear for 2-3 minutes until lightly browned (it doesn’t need to be cooked through). Remove and set aside.
Add onions, celery, and carrots to the pot. Sauté for 3-4 minutes until softened. Stir in garlic and cook for 1 minute.
Sprinkle flour over the vegetables and stir to coat evenly. Cook for 1 minute to remove the raw flour taste. Gradually add chicken broth while stirring, scraping any browned bits from the bottom of the pot.
Return the chicken to the pot. Add potatoes, thyme, salt, and pepper. Stir to combine.
Close the lid and set the valve to sealing. Cook on High Pressure for 10 minutes. Allow for a 10-minute natural pressure release, then manually release any remaining pressure.
Stir in frozen peas and heavy cream, let them warm in the residual heat for 2-3 minutes. Adjust seasoning to taste and serve.
Stove Top:
Heat olive oil in a large pot over medium heat. Sear cubed chicken for 2-3 minutes until lightly browned. Remove and set aside.
Add onions, celery, and carrots to the pot. Sauté for 3-4 minutes, then stir in garlic and cook for 1 minute.
Sprinkle flour over the vegetables and stir to coat. Gradually add chicken broth, stirring to combine.
Return chicken to the pot, then add potatoes, thyme, salt, and pepper. Stir to combine.
Bring to a boil, then reduce heat to low. Cover and simmer for 30 minutes, stirring occasionally, until chicken and potatoes are tender.
Stir in frozen peas and heavy cream, cook for another 5 minutes. Adjust seasoning to taste and serve.
Notes
Brown the chicken for extra flavor: Sautéing the chicken thighs before pressure cooking helps develop a richer taste and better texture.
Don’t skip the flour: It helps thicken the stew and creates a heartier consistency. For a gluten-free option, use arrowroot powder or cornstarch mixed with water.
Use heavy cream for creaminess: Stirring in heavy cream at the end adds a velvety richness. For a lighter option, use half-and-half or full-fat coconut milk for a dairy-free alternative.
Add peas last: Frozen peas should be added after pressure cooking to maintain their bright color and slight bite.
Adjust thickness: If the stew is too thick, add a splash of broth or cream. If it’s too thin, mash some of the potatoes or stir in a cornstarch slurry (1 tablespoon cornstarch + 2 tablespoons water).
Season to taste: Always adjust salt and pepper based on your broth and personal preference.