Sear Chicken: Heat 1 tablespoon of butter and olive oil in a large Dutch oven over medium-high heat. Season chicken pieces with salt, pepper, and smoked paprika. Sear for 4-5 minutes until golden on the outside (it will finish cooking in soup). Transfer chicken to a clean plate.
Sauté Aromatics: Lower heat to medium. Melt remaining 2 tablespoons of butter in the pot. Add diced onion and celery, sautéing for 5 minutes until tender. Add minced garlic and cook for 1 minute until fragrant.
Form the Roux: Sprinkle flour over the cooked vegetables. Stir continuously for 2 minutes to cook out raw flour taste and form a rich golden base.
Simmer Chowder: Slowly pour in halal chicken broth while whisking constantly to dissolve the roux without lumps. Add diced Yukon gold potatoes, sweet corn, dried thyme, and bay leaf.
Cook Potatoes: Bring soup to a boil, then reduce heat to medium-low. Cover partially and simmer for 15-18 minutes until potatoes are fork-tender.
Mash for Creaminess (Chef Secret): Use a potato masher to lightly crush about 1/3 of the cooked potatoes right in the pot. This naturally thickens the chowder to rich restaurant consistency.
Return Chicken & Add Cream: Return seared chicken and any resting juices to the pot. Stir in heavy cream and let simmer gently for 5 minutes until chicken is completely cooked through and chowder is velvety.
Season & Serve: Discard bay leaf. Taste and adjust salt and pepper. Ladle into warm bowls, garnish with fresh chives, parsley, and optional sharp cheddar shreds.