First, prep all the ingredients before starting. You want easy access before you start cooking because the recipe will move quickly.
In a large pot, add a little oil then sauté the diced onion, carrots, celery and minced garlic on medium high heat. Cook until soft and fragrant.
Then, toss in the butter then lower to medium heat. Once melted add in the flour and mix everything everything until the flour is bubbling for about 5-10 seconds.
Toss in the diced potatoes, chopped chicken then the corn and peas. After, pour in the chicken broth.
Bring the pot to a simmer then cover and allow to cook until the potatoes have softened, about 20 minutes.
When the potatoes are softened remove the pot from the heat source. Lastly, pour in the heavy cream then season with salt and black pepper to taste.