Ingredients
Method
- Spread torn French baguette pieces in a thin layer and dry them at 250°F for 45 to 60 minutes. Turn the pieces halfway using a spatula so they lose moisture evenly. You'll notice the bread becomes firm with pale golden edges and a toasted smell. Don't leave it too long because the pieces can become hard instead of absorbent. Drying the bread slowly keeps the topping tender inside. Preheat the oven to 375°F now so it's fully hot by the time the pan goes in.

- Combine shredded boneless chicken breast with sour cream, heavy cream and chicken broth at medium heat about 300°F equivalent for 8 to 10 minutes. Stir slowly with a spatula until the mixture thickens and coats the chicken evenly. The filling should look creamy with a smooth texture and gentle steam rising. The sauce should cling to the chicken instead of pooling. Miss this window and the filling can become watery after baking. (I tested a thinner sauce first and the casserole separated after baking. The thicker filling held together better.)

- Spread the creamy chicken mixture into a 9x13 ceramic baking dish and cover it with dried French baguette pieces. Press some bread pieces lightly into the surface using your fingers while leaving uneven areas exposed. The top should show scattered bread pieces with small gaps where the filling appears underneath. Avoid packing it tightly because the topping needs space to crisp. This layering creates the contrast between creamy filling and crunchy bread. Bake the assembled dish at 375°F for 25 to 30 minutes, the layers set together through heat transfer.

- Bake the 9x13 ceramic baking dish at 375°F for 25 to 30 minutes until the center reaches a hot bubbling state. Rotate the dish halfway through and lightly press the topping with a spatula to check firmness. You'll see golden bread edges, melted cheese spots and creamy filling bubbling around the sides. The aroma changes to toasted bread and savory chicken. Don't extend the bake too far because the filling can dry out. Bake at 375°F for 30 minutes, balanced heat sets the filling while protecting moisture.

Notes
Keep Friendsgiving Casserole By Joanna Gaines in an airtight glass container or covered baking dish for up to 4 days in the refrigerator. For freezing, wrap the unbaked casserole tightly with plastic wrap and foil, then freeze it for up to 2 months. Thaw overnight before baking so the creamy filling warms evenly. Reheat portions at 350°F for 15 to 20 minutes until the center reaches a hot temperature. Add a few fresh bread pieces on top before reheating if the crust needs more texture. Discard leftovers if you notice sour smells, unusual liquid separation, or changes in texture.
