Costco Deli Chicken Pot Pie
"The four-pound behemoth from the deli case, recreated at home where you can actually see what's inside."
Costco Copycat — This is a homemade version of the Costco Deli & Prepared Foods item. See it in store →
The Game Plan
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Preheat oven to 400°F. Pull the puff pastry from the freezer to thaw — this takes about 40 minutes at room temperature, so start here before anything else.
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Melt butter in a large pot or Dutch oven over medium heat. Add the diced onion and celery and cook for 5-6 minutes until softened and translucent.
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Sprinkle in the flour and stir constantly for 1-2 minutes to cook out the raw taste. This is your roux — don't rush it, don't walk away, and don't let it brown.
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Slowly pour in the chicken broth while whisking vigorously to prevent lumps.
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Add the cream and milk, continuing to stir until the mixture thickens into a silky gravy, about 5 minutes. It should coat the back of a spoon.
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Stir in the shredded rotisserie chicken, frozen mixed vegetables (straight from frozen is fine), thyme, garlic powder, and pepper. Season with salt. The filling should be thick, creamy, and bubbling gently.
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Pour the filling into a 9x13 baking dish. Let it cool for 5 minutes so the puff pastry doesn't melt on contact.
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Unfold the puff pastry sheets and lay them over the top, trimming and overlapping to fit. Press the edges firmly against the rim of the dish.
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Cut 4-5 slits in the top for steam to escape. Brush the entire surface generously with egg wash — this is what gives you that bakery-golden color.
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Bake for 25-30 minutes until the pastry is dramatically puffed and deeply golden brown.
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Let it rest for 10 minutes before serving — the filling is volcanic and needs time to set.
