Giblet Gravy for Heritage Turkey with Oyster Dressing

Set roasting pan across two burners over medium heat. When drippings begin to simmer, whisk in flour and cook, whisking, for 3 minutes. Add thyme, giblets, and liver, and stir to combine.

Add 1/2 cup stock and whisk until smooth. Bring to a simmer. Continue adding stock, 1/2 cup at a time, whisking, until all the stock has been added. Season with salt and pepper. Keep warm until ready to use.