about 1 cup
2 tablespoons pan drippings from roast of beef
2 tablespoons all-purpose flour
1 cup milk
1/4 teaspoon salt
1/8 teaspoon pepper
Heat drippings in a heavy saucepan over low heat. Add flour; stir until smooth. Cook 1 minute, stirring constantly. Gradually add milk; cook over medium heat, stirring constantly, until thickened. Add salt and pepper. Serve hot with roast beef.