Mix Gravy Mix and flour in large saucepan. Gradually stir in water and turkey drippings with wire whisk until smooth. Stir in chopped turkey giblets, if desired.
Stirring frequently, cook on medium-high heat until gravy comes to boil. Reduce heat to low; simmer 5 minutes or until thickened, stirring occasionally. (Gravy will continue to thicken upon standing.).