Caterer's Favorite Gravy

3-3 1/2 cups giblet broth
1/4 cup flour
dash salt
dash black pepper
Pour drippings in bowl. Leave most brown particles. Let fat rise, 
skim off 1/4 cup fat. Pour 3 cups broth with drippings in pan and 
heat and stir. Heat turkey fat in another pan, stir in 1/4 cup 
flour. Cook 1-2 minutes until it is light brown. Gradually stir in 
broth into fat and flour mixture. Stir over moderate heat until 
thick and smooth. Add salt and pepper. Simmer until thick. Add 
diced giblets and simmer 5 minutes if wanted.